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ZPacksô 900 Fill Power Down Sleeping Bags

Description:

Our sleeping bags combine the best aspects of a down quilt and a down sleeping bag at an unbeatable weight. The bag opens up underneath you like a blanket for easy temperature control when it is warm out, and a 3/4 length zipper and neck elastic allow you to bundle up when the temperature turns cold.

Available in 40, 30, 20 and 10 degree Fahrenheit temperature ratings (5C, -1C, -7C, and -12C), in a plethora of sizes. Each bag is custom built to your specifications.

The bags are made with premium 900 fill power goose down and some of the lightest nylon shell materials available.

Quick Specifications:

40 Degrees
(5* C) - Medium Length, Regular Width - 11.4 ounces (323 grams)  $350

30 Degrees
(-1* C) - Medium Length, Regular Width - 14.0 ounces (397 grams)  $370

20 Degrees (-7* C) - Medium Length, Regular Width - 16.7 ounces (473 grams)  $390

10 Degrees
(-12* C) - Medium Length, Regular Width - 19.4 ounces (550 grams)  $410

Girth:  Shoulders / Hips / Feet
Regular Width:  56" / 56" / 30"  (142 cm / 142 cm / 76 cm)
Wide Width: 61" / 61" / 35"  (155 cm / 155 cm / 89 cm)
Extra-Wide Width: 66" / 63" / 40" (167 cm / 160 cm / 101 cm)

The dimensions are measured with the bag opened up, stretched tight, from one edge to the other. If you already have a bag to compare, measure the same way.

How to measure yourself for Girth: Measure around the thickest part of your chest including your arms. Add at least 6-8" or more for wiggle room. For example, I measure about 48" around my chest and arms and the 56" regular bag is a snug but comfortable fit on me. Our regular girth bag runs slim compared to others.

Length:
The listed length of the bag extends TO THE NECK of a person that height. Size up a length if you want extra room to wrap the quilt around your ears or tuck your head in.

For example, a Medium 5' 9" bag should be long enough to cinch comfortably around the neck of a person who is Up To 5' 9" (1.75m) tall. That is fine if you sleep in a warm hat or hood, but I find it very nice to size up a length so that I can pull the quilt up around my ears when it gets cold.

Lengths are available to fit from Extra Short 5' 0" (1.52 meters) up to Extra Long 6' 5" (1.95 meters). Even longer sizes available on request.

See the chart below for details on most of the sizes.

Materials:
Constructed of the lightest materials available:
  • Outer Shell Material:  .70 oz/sqyd (23.7 g/m2) Ventum Ripstop Nylon w/ DWR
     
  • Inner Liner Material: .70 oz/sqyd (23.7 g/m2) Ventum Ripstop Nylon w/ DWR
     
  • Baffle Material: .34 oz/sqyd Cuben Fiber
     
  • Fill Material: 900 Fill Power Premium Goose Down
Features:

  • Tightly spaced continuous baffles every 5 inches help keep the down evenly distributed. For the most warmth fluff up the down each night by shaking the bag before use.

    There are no "sewn through" cold spots, including in the foot area. The only cold spot is the zipper, which is positioned on the bottom underneath you.
     
  • Each baffle is overstuffed with 30% more 900 Fill Power Premium Goose Down than is necessary for maximum loft to account for any future down compression. Down bags can last for decades with care!

    Store loose (hanging in a closet for example) when not in use. Each bag has a hang loop at the foot. Alternatively it can be stored loose in a laundry bag.
     
  • Black ripstop nylon on the inside for quick drying. Both the liner and the shell are treated with durable water repellant to resist rain spray and body moisture.

    The shell material is reasonably durable for normal use, and it can also be repaired easily with matching Nylon Repair Tape.
     
  • 3/4 Length Zipper extends to your calves. The zipper is positioned on the bottom of the bag giving it two advantages:
    1. The bag can easily be opened up for venting in "quilt mode". Most of the time you probably won't even use the zipper.
       
    2. Since the zipper is underneath you no draft tube is necessary- that means less weight and much less chance of a frustrating zipper snag.  Getting in and out is as easy as turning the zipper to the side, or just slide in or out the top of the bag.
    3. A draft tube is available as an option if you want one (below).

    You can also choose to leave off the zipper entirely. The zipper accounts for just .6 ounces (17 grams) of the bag's weight.
     

  • A clip at the top of the zipper keeps the zipper securely closed. Or use the clip alone with the zipper opened for venting.
     
  • An Elastic cord can be cinched tight around your neck to keep out drafts. The listed length of the bag extends TO THE NECK of a person that height. Size up a length if you want extra room to wrap the quilt around your ears or tuck your head in.

    This bag does not have a hood- wear a warm hat, or a goose down hood, or size up in length if you want to pull it up around your head.
     
  • A Cuben Fiber Roll Top Bag is included, and adds about .9 ounces (25.5 grams) to the listed weight.

    40F and small 30F bags ship in a Slim dry bag which is 5.5" x 12" (13 cm x 31 cm)

    Larger 30F bags and all 20F bags ship in a Medium dry bag which is 6" x 12" (15 cm x 30.5 cm)

    All 10F bags ship in a Medium-Plus dry bag which is 7" x 15" (18 cm x 38 cm)

    The dry bags are a comfortable fit and can be compressed smaller by squishing the contents and rolling the top down more.
     
  • All ZPacks gear has a one year warranty against defects in materials or workmanship. Returns or exchanges are welcome.
     
  • For more info check out the Sleeping Bag FAQs.

Washing Instructions:
Hand wash with warm water in a bathtub or bucket. Do not use soap unless it is made specifically for down. Normal soap can strip down of its natural oils. Typically warm water alone is sufficient. Do not machine wash- the twisting motion of a washing machine may cause tears. Line dry, or tumble dry on low heat. Do Not Dry on High Heat. Store loose (hanging) when not in use!


20F Regular Width, Long Length:

Click for larger images

10F Regular Width, Long Length:
The slate blue color is not as bright as it appears. It is a more subdued blue-gray.


Click for larger images
Click for larger images
Click for larger images

See how our sleeping bags stack up in a side by side comparison of over 30 different bags: Outdoor Gear Lab Sleeping Bag Review

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"Cesar and the Woods" Compares our 40F and 20F bags in this ZPacks Sleeping Bag Review.

"It is the single best sleeping bag I have owned and used in my life" -Cesar V.
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TrailGroove Magazine gave our 20F Bag a 5 star review!
TrailGroove Magazine ZPacks Sleeping Bag Review
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Read a review by Cameron Meier, editor at ireviewgear.com:
ZPacks Sleeping Bag Review

"Just a little update for you. After 2 years of hard use using your quilt in floorless Shelters and bivy sacks, that thing is still going strong and has a ton of loft left in it. I love this quilt"
-Cameron Meier
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Read about Brett's sleep system on his 2012 PCT thru-hike:
Brett's PCT Sleep System
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Trailrunnermag.com names our sleeping bag the best Fast packing bag! January 2014
Best Fast packing sleeping bag
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Matt Alley reports on his
10F Sleeping Bag
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Please scroll down to the bottom of the page for more reviews and customer feedback!

Specification Charts:

40 Degrees F (5* C):

Temperature Girth Size
(Fits Up To):
Baffle Height Shell
Weight
Down Fill Weight Total
Weight
Price
40F
(5* C)
Regular - 56" (142 cm) Short 5' 5"
(1.65 meters)
1.25 inches
(3.2 cm)
5.0 ounces
(141 grams)
5.5 ounces
(157 grams)
10.5 ounces
(298 grams)
$340
40F
(5* C)
Regular - 56" (142 cm) Medium
1(1.75 meters)
1.25 inches
(3.2 cm)
5.4 ounces
(153 grams)
6 ounces
(171 grams)
11.4 ounces
(323 grams)
$350
40F
(5* C)
Regular - 56" (142 cm) Long 6' 1"
(1.85 meters)
1.25 inches
(3.2 cm)
5.8 ounces
(165 grams)
6.5 ounces
(185 grams)
12.3 ounces
(349 grams)
$360
40F
(5* C)
Regular - 56" (142 cm) X-Long 6' 5"
(1.95 meters)
1.25 inches
(3.2 cm)
6.2 ounces
(177 grams)
7.0 ounces
(199 grams)
13.2 ounces
(374 grams)
$370
40F
(5* C)
Wide - 61" (155 cm) Short 5' 5"
(1.65 meters)
1.25 inches
(3.2 cm)
5.4 ounces
(155 grams)
 6.1 ounces
(172 grams)
11.5 ounces
(326 grams)
$360
40F
(5* C)
Wide - 61" (155 cm) Medium 5'9"
(1.75 meters)
1.25 inches
(3.2 cm)
5.9 ounces
(168 grams)
6.6 ounces
(188 grams)
12.5 ounces
(354 grams)
$370
40F
(5* C)
Wide - 61" (155 cm) Long 6' 1"
(1.85 meters)
1.25 inches
(3.2 cm)
6.4 ounces
(181 grams)
7.2 ounces
(203 grams)
13.6 ounces
(386 grams)
$380
40F
(5* C)
Wide - 61" (155 cm) X-Long 6' 5"
(1.95 meters)
1.25 inches
(3.2 cm)
6.9 ounces
(194 grams)
7.8 ounces
(218 grams)
14.7 ounces
(417 grams)
$390
40F
(5* C)
X-Wide - 66" (167 cm) Long 6' 0"
(1.8 meters)
1.25 inches
(3.2 cm)
7.0 ounces
(199 grams)
8.0 ounces
(227 grams)
15 ounces
(425 grams)
$405
40F
(5* C)
X-Wide - 66" (167 cm) X-Long 6' 4"
(1.9 meters)
1.25 inches
(3.2 cm)
7.5 ounces
(213 grams)
8.6 ounces
(244 grams)
16.1 ounces
(456 grams)
$420
40F
(5* C)
X-Wide - 66" (167 cm) XX-Long 6' 7"
(2.0 meters)
1.25 inches
(3.2 cm)
8.0 ounces
(227 grams)
9.2 ounces
(261 grams)
17.2 ounces
(488 grams)
$435

30 Degrees F (-1* C):
Temperature Girth Size
(Fits Up To):
Baffle Height Shell
Weight
Down Fill Weight Total
Weight
Price
30F
(-1* C)
Regular - 56" (142 cm) Short 5' 5"
(1.65 meters)
1.75 inches
(4.5 cm)
5.1 ounces
(145 grams)
7.8 ounces
(220 grams)
12.9 ounces
(366 grams)
$360
30F
(-1* C)
Regular - 56" (142 cm) Medium 5'9"
(1.75 meters)
1.75 inches
(4.5 cm)
5.4 ounces
(153 grams)
8.5 ounces
(240 grams)
14.0 ounces
(397 grams)
$370
30F
(-1* C)
Regular - 56" (142 cm) Long 6' 1"
(1.85 meters)
1.75 inches
(4.5 cm)
6.0 ounces
(170 grams)
9.2 ounces
(260 grams)
15.1 ounces
(428 grams)
$380
30F
(-1* C)
Regular - 56" (142 cm) X-Long 6' 5"
(1.95 meters)
1.75 inches
(4.5 cm)
6.5 ounces
(184 grams)
9.9 ounces
(280 grams)
16.4 ounces
(465 grams)
$390
30F
(-1* C)
Wide - 61" (155 cm) Short 5' 5"
(1.65 meters)
1.75 inches
(4.5 cm)
5.6 ounces
(159 grams)
 8.5 ounces
(242 grams)
14.1 ounces
(400 grams)
$380
30F
(-1* C)
Wide - 61" (155 cm) Medium 5'9"
(1.75 meters)
1.75 inches
(4.5 cm)
6.1 ounces
(173 grams)
9.3 ounces
(264 grams)
15.4 ounces
(437 grams)
$390
30F
(-1* C)
Wide - 61" (155 cm) Long 6' 1"
(1.85 meters)
1.75 inches
(4.5 cm)
6.6 ounces
(187 grams)
10.1 ounces
(286 grams)
16.7 ounces
(473 grams)
$400
30F
(-1* C)
Wide - 61" (155 cm) X-Long 6' 5"
(1.95 meters)
1.75 inches
(4.5 cm)
7.1 ounces
(201 grams)
10.9 ounces
(309 grams)
18.0 ounces
(510 grams)
$410
30F
(-1* C)
X-Wide - 66" (167 cm) Long 6' 0"
(1.8 meters)
1.75 inches
(4.5 cm)
7.2 ounces
(204 grams)
11 ounces
(312 grams)
18.2 ounces
(516 grams)
$425
30F
(-1* C)
X-Wide - 66" (167 cm) X-Long 6' 4"
(1.9 meters)
1.75 inches
(4.5 cm)
7.7 ounces
(218 grams)
 11.8 ounces
(335 grams)
19.5 ounces
(553 grams)
$440
30F
(-1* C)
X-Wide - 66" (167 cm) XX-Long 6' 7"
(2.0 meters)
1.75 inches
(4.5 cm)
8.2 ounces
(232 grams)
 12.6 ounces
(357 grams)
20.8 ounces
(590 grams)
$455

20 Degrees F (-7* C):
Temperature Girth Size
(Fits Up To):
Baffle Height Shell
Weight
Down Fill Weight Total
Weight
Price
20F
(-7* C)
Regular - 56" (142 cm) Short 5' 5"
(1.65 meters)
2.25 inches
(5.7 cm)
5.3 ounces
(150 grams)
10.1 ounces
(286 grams)
15.4 ounces
(437 grams)
$380
20F
(-7* C)
Regular - 56" (142 cm) Medium 5'9"
(1.75 meters)
2.25 inches
(5.7 cm)
5.7 ounces
(162 grams)
11 ounces
(312 grams)
16.7 ounces
(473 grams)
$390
20F
(-7* C)
Regular - 56" (142 cm) Long 6' 1"
(1.85 meters)
2.25 inches
(5.7 cm)
6.1 ounces
(173 grams)
11.9 ounces
(338 grams)
18.0 ounces
(510 grams)
$400
20F
(-7* C)
Regular - 56" (142 cm) X-Long 6' 5"
(1.95 meters)
2.25 inches
(5.7 cm)
6.5 ounces
(184 grams)
12.8 ounces
(363 grams)
19.3 ounces
(547 grams)
$410
20F
(-7* C)
Wide - 61" (155 cm) Short 5' 5"
(1.65 meters)
2.25 inches
(5.7 cm)
5.7 ounces
(162 grams)
11.1 ounces
(314 grams)
16.8 ounces
(476 grams)
$400
20F
(-7* C)
Wide - 61" (155 cm) Medium 5'9"
(1.75 meters)
2.25 inches
(5.7 cm)
6.2 ounces
(176 grams)
12.1 ounces
(343 grams)
18.3 ounces
(519 grams)
$410
20F
(-7* C)
Wide - 61" (155 cm) Long 6' 1"
(1.85 meters)
2.25 inches
(5.7 cm)
6.7 ounces
(190 grams)
13.1 ounces
(372 grams)
19.8 ounces
(561 grams)
$420
20F
(-7* C)
Wide - 61" (155 cm) X-Long 6' 5"
(1.95 meters)
2.25 inches
(5.7 cm)
7.2 ounces
(204 grams)
14.1 ounces
(400 grams)
21.3 ounces
(604 grams)
$430
20F
(-7* C)
X-Wide - 66" (167 cm) Long 6' 0"
(1.8 meters)
2.25 inches
(5.7 cm)
7.3 ounces
(207 grams)
14.3 ounces
(405 grams)
21.6 ounces
(612 grams)
$445
20F
(-7* C)
X-Wide - 66" (167 cm) X-Long 6' 4"
(1.9 meters)
2.25 inches
(5.7 cm)
7.8 ounces
(221 grams)
15.3 ounces
(434 grams)
23.1 ounces
(655 grams)
$460
20F
(-7* C)
X-Wide - 66" (167 cm) XX-Long 6' 7"
(2.0 meters)
2.25 inches
(5.7 cm)
8.3 ounces
(235 grams)
16.3 ounces
(462 grams)
24.6 ounces
(697 grams)
$475

10 Degrees F (-12* C):

Temperature Girth Size
(Fits Up To):
Baffle Height Shell
Weight
Down Fill Weight Total
Weight
Price
10F
(-12* C)
Regular - 56" (142 cm) Short 5' 5"
(1.65 meters)
2.75 inches
(7 cm)
5.4 ounces
(153 grams)
12.4 ounces
(352 grams)
17.8 ounces
(505 grams)
$400
10F
(-12* C)
Regular - 56" (142 cm) Medium 5'9"
(1.75 meters)
2.75 inches
(7 cm)
5.8 ounces
(164 grams)
13.5 ounces
(384 grams)
19.4 ounces
(550 grams)
$410
10F
(-12* C)
Regular - 56" (142 cm) Long 6' 1"
(1.85 meters)
2.75 inches
(7 cm)
6.3 ounces
(179 grams)
14.7 ounces
(416 grams)
20.9 ounces
(593 grams)
$420
10F
(-12* C)
Regular - 56" (142 cm) X-Long 6' 5"
(1.95 meters)
2.75 inches
(7 cm)
6.8 ounces
(193 grams)
15.9 ounces
(451 grams)
22.7 ounces
(644 grams)
$430
10F
(-12* C) 
Wide - 61" (155 cm) Short 5' 5"
(1.65 meters)
2.75 inches
(7 cm)
5.9 ounces
(167 grams)
13.7 ounces
(387 grams)
19.5 ounces
(553 grams)
$420
10F
(-12* C)
Wide - 61" (155 cm) Medium 5'9"
(1.75 meters)
2.75 inches
(7 cm)
6.4 ounces
(181 grams)
14.9 ounces
(422 grams)
21.3 ounces
(604 grams)
$430
10F
(-12* C)
Wide - 61" (155 cm) Long 6' 1"
(1.85 meters)
2.75 inches
(7 cm)
6.9 ounces
(196 grams)
16.1 ounces
(457 grams)
23.0 ounces
(652 grams)
$440
10F
(-12* C)
Wide - 61" (155 cm) X-Long 6' 5"
(1.95 meters)
2.75 inches
(7 cm)
7.4 ounces
(210 grams)
17.3 ounces
(490 grams)
24.7 ounces
(700 grams)
$450
10F
(-12* C)
X-Wide - 66" (167 cm) Long 6' 0"
(1.8 meters)
2.75 inches
(7 cm)
7.5 ounces
(212 grams)
17.5 ounces
(496 grams)
25 ounces
(709 grams)
$465
10F
(-12* C)
X-Wide - 66" (167 cm) X-Long 6' 4"
(1.9 meters)
2.75 inches
(7 cm)
8.0 ounces
(227 grams)
18.7 ounces
(530 grams)
26.7 ounces
(757 grams)
$480
10F
(-12* C)
X-Wide - 66" (167 cm) XX-Long 6' 7"
(2.0 meters)
2.75 inches
(7 cm)
8.5 ounces
(241 grams)
20 ounces
(567 grams)
28.5 ounces
(808 grams)
$495

Ordering:

Sleeping Bags are made to order. There is currently a lead time of about 6-8 weeks. If you have a hard due date within that window make sure to let us know after you order so that we can schedule accordingly.

Important: The sizes listed will cinch snug around the neck of a person up to the indicated height. We recommend sizing up one length so that you have extra length to pull up around your ears when it gets cold.

40 Degree Regular Width Sleeping Bag
Length
Color
40 Degree Wide Width Sleeping Bag
Length
Color

40 Degree Extra-Wide Width Sleeping Bag
Length
Color

30 Degree Regular Width Sleeping Bag
Length
Color
30 Degree Wide Width Sleeping Bag
Length
Color
30 Degree Extra-Wide Width Sleeping Bag
Length
Color
20 Degree Regular Width Sleeping Bag
Length
Color
20 Degree Wide Width Sleeping Bag
Length
Color
20 Degree Extra-Wide Width Sleeping Bag
Length
Color
10 Degree Regular Width Sleeping Bag
Length
Color
10 Degree Wide Width Sleeping Bag
Length
Color
10 Degree Extra-Wide Width Sleeping Bag
Length
Color

Zipper Options:


Option 1) The Default Zipper Photo is 3/4 length on the bottom. It is a lightweight #3 size zipper. The zipper accounts for about .6 ounces (17 grams) of the bag weight. $0

Option 2) #5 Full Length Two-Way Zipper Photo This will be a larger #5 zipper, which will add about 1.2 ounces to the bag weight. It can open from the neck, or from the foot for venting. It extends down to the toe of the bag as shown. Add $10.

Option 3) Adjustable Straps Photo 1, Photo 2 . Instead of a zipper, two evenly spaced sets of grosgrain straps are added to secure the bottom of the bag. The straps clip at both sides and can be removed. You can clip the straps beneath your body, or you can wrap them around a sleeping pad as shown. There is also a clip at the neck of the bag. You are welcome to add this in addition to a zipper, just add both to your cart. $5

Option 4) Joining Zippers Photo 1  Photo 2. This option must be purchased with TWO sleeping bags at the same time so that we can match the zipper length on both bags. This option adds a full length #5 zipper extended to the toe of the bag, AND a draft tube. The two bags do not need to be the same girth or length, they just need to be built with the same length #5 zipper to join up. When the bags are zipped together the draft tubes will be positioned such that both are covering the zipper at the top center. When used solo the zipper and draft tube will be in the standard bottom configuration underneath you. This adds about 1.2 ounces for the larger zipper and 1.2 ounces for the draft tube to each bag (+2.4 ounces each). $35 each bag 

Zipper

Draft Tube:

The zipper is the only "cold spot" on this bag. Normally the zipper would be positioned underneath you where cold air won't get through. If you roll around alot and aren't comfortable keeping the zipper below you a Draft Tube can be added to cover the zipper. The draft tube has a stiffener to help keep the zipper from snagging on it. It adds 1.2 ounces (34 grams) of weight.

Draft Tube - 1.2 oz (34 grams) - $20

900 Fill Power Water Resistant Down:

Water resistant down is just normal down that is washed with a water resistant treatment by the factory. In theory this treatment makes the down take longer to wet out, and may retain a little bit less water after being soaked, however real world results are hard to observe. The down still wets out after a while and you still need to be careful to keep your bag dry. I personally think that the benefits are very minor. We have also noticed that the treated down can be more clingy and can take more work to break apart clumps and fluff the bag up, which could result in cold spots if the bag isn't fluffed well.

It is for this reason that we have decided to streamline our production and discontinue WR down as a standard option as of November 2014.


Down Overfill:

The amount of down in each sleeping bag is explained Here. The sleeping bags are overfilled 30% based on the calculated amount of 900 fill power down required to fill the volume.

We are no longer doing in between temperature ratings or bag lengths as it makes construction and exchanges difficult. If you sleep cold at night consider going down to the next lowest temperature rating. Exchanges are welcome on any of the standard sizes and temperature ratings!


Reviews and Customer Testimonials:


Please email us with feedback (good or bad) if you have any!



"I just returned from my thru-hike of the John Muir Trail. Your 30 degree quilt performed wonderfully. I was plenty warm most nights, although a little concerned at first. It got into the low 30's a few nights and I'd say the average low temp was around 38 - 40. The 30 degree rating is definitely an accurate rating especially when compared to bags or quilts of the same rating. And, as I'm sure you know, some manufacturers are more honest than others. I'd definitely take this quilt with me again in temperatures estimated to be in the 30's."  --Tyler F. from CA

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"My constantly-cold wife has been using your 20 degree quilt since January 2012, in temps down to 25 degrees, and hasn't been cold a single night. She loves it!" --Austin from WA

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"My 19 ounce, 20 degree bag that I bought from you gave me an edge when it came to weight and pack volume.  We were forced on many occasions to sleep out in some rather wet dewy conditions, and while I frequently woke up with a healthy layer of moisture on my bag and gear, the dry sacks never failed me and the sleeping bag always stayed warm.  It also dried out super quick.  You must already know how effective your products are in the field, but regardless I wanted you to know what a difference they made in my backcountry experience."  --Timothy W.

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"Just got back from a two week trip in the Southern Rockies and had all kinds of weather.  Have to say that your sleeping bags worked fabulously and far exceeded our expectations.  Thank you for making such great (and light) gear." --Rob H.

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"Just wanted to let you know that my bag performed superbly on my Cascades trip. I was super snug and actually preferred not having a hood if the truth be known. We climbed Shuksan via the Fischer's Chimneys and Southeast Ridge and I can honestly say I needed some good sleep (it was tough!) so I really really appreciated being warm and my big pack being lighter. Thanks again for making this one happen for me!"  --Viki T.

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"I just wanted to let you know what a superior product your company makes. I just finished a hike of the arctic circle trail in Greenland and you bag performed flawlessly. I hardly noticed it in my pack and it was warm. The ability to use as a quilt kept me ventilated when I got too warm. I was gone for about a month and slept in your bag in ranges from the polar ice cap out to the coast. After that, I did trips to Iceland, the mountains around my house, and everywhere in between. It was perfect. I currently have the 10 degree wide, long bag (it is warmer then 10 degree in my opinion). There are very few things I would change about it. I can't say that about most gear. I will be ordering a new model in the near future for myself and my wife." --Davy H.

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" I successfully completed a NOBO PCT hike, starting May 19th and ending October 29th amidst the glorious snow. I used your 30* long / wide quilt and stuff sack pillow from start to finish and couldn't be more pleased with the performance!" --Seth B.

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"Camped in the back yard last night as it hovered around 10 degrees. Wanted to give the new 10F bag a try. 40 mph wind gusts had the tent rocking a bit. I had to remove layers to dial in the warmth and the temperature rating was for me just right and then some. So in the end I have now saved around 1.5 lbs off my old sleeping system!" --Chris B.

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The bag that we originally got was a little on the cold side for me (not the bags fault- as I get older I find that I just sleep colder). You guys took the bag back and sold me a warmer one for just a little more. I was extremely impressed with your level of service and the quality of the replacement bag. I've taken it out several times and have slept very comfortably in it. You guys are fantastic and make great stuff! --Sincerely, Kemper S.

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My new Duplex tent and 10 degree bag were awesome this past weekend in Michigan. It got down to 7 degrees and I was the only one of 6 who didn't complain about being cold. Thanks! --Kevin R.

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"I can't tell you how happy I was to get my new 10F sleeping bag! I've already used it on two short trips and it has exceeded all my expectations. From years of working at a high end outdoor retail store I can say with confidence that this bag blows every big name brand out of the water, at a reasonable price too." --Eli B.

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"I just wanted to let you know that I returned from my JMT hike on August 11. I had lots of weather for those two weeks. My 20F sleeping bag kept me warm and dry! I was so thankful for this bag. Thank you so much for working with me!" -Diana H.

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"I have to repeat what I tell everyone: your sleeping bags and other products, and your service, is the best in the industry. Iíve been using my new Solo bag all summer and still donít believe how comfortable it is for sleeping and how feather light it is for carrying. Thank you for delivering a major quality of life improvement on the trail!" -Peter N.

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Bobcat completed the triple crown (AT, PCT, CDT) in September 2014. "My ZPacks sleeping bags have over 6,000 miles on them and they're still going strong. This photo was taken on Texas Pass above Cirque of the Towers in the Wind River Range of Wyoming." -Bobcat

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"I bought a 20 degree, wide, long sleeping bag from you last year. I did about 2100 miles of the CDT and it performed very well. (Lots of rain in Colorado and Wyoming). I had to supplement with a few extra layers on a few cold nights, but nearly every day it was plenty warm. Also, love my Duplex tent. For 20 ounces, itís a palace. Never failed once in many nights of rain. You guys make good stuff." - Chuck S.

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"Your 10F degree bag is one of the best equipment purchases that I have made that has by far exceeded my expectations. I was camping for 3 nights north of Montreal in the Laurentian Mountains, and tested the sleeping bag at -4F. I was sleeping inside a tent so I am not sure what the temperature inside was, but I was expecting a long freezing night. I used my down pants and my puffy, but after 2 hrs in the bag I had to remove them as I was too hot. I like the shell material of the sleeping bag, very thin, and seems to be very strong." -Gilles B.

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"Iíve been using one of your 20F quilts for a year now and Iíve been super happy with it for trekking in Sardinia, paddling in Norway and climbing in the Alps this winter (with all my clothes on of course). Absolutely outstanding equipment!!! I suggested my mother to buy one and she has been using her own in Iceland last summer." -Ruggero A.

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"Feedback on my 20F and 10F sleeping bags. I find both great: light and warm. I have used both several times at the temperature ratings, and always felt cozy warm. I do use them in a tent, with your bivy which adds several degrees of heat. I have never used the zippers. On my head I have a fleece balaclava and your Goose Hood when below freezing. There were never cold spots. Thank you, you make really good stuff!" - Anne G., Switzerland

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"Just wanted to let you know that my custom quilt came out perfect. I love it. I've used it a dozen or so nights and when zipped up it has kept me warm into the low teens (F) in only a base layer, socks, and a beanie. As a quilt, I love how I can either keep the down over my torso or, on particularly warm nights, let it fall to my sides. It's the most versatile quilt I've ever owned. Plus, it's magnificent to see such a huge thing covered with beautiful fabric and know it weighs so little. A down puff sneaks out occasionally, but nothing crazy. I'll be recommending your bags to friends and family. Thanks! You guys nailed it." -Jason W.

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"The 20F sleeping bag you made for me kicks ass... have used it camping primarily in New England in cold weather. Not exactly dead of winter, but cold shoulder season." -George G.

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"I'm going to pass on my 20 degree bag to my wife. It now has over 7,500 miles on it, CDT, AT and quite a few shorter hikes in-between, and it's still in almost new condition. Loft is great and I'd use it again on our Camino trip this summer, except that this gives me a good excuse to buy a new summer bag. That 20 degree bag has held up much better than the WM 20 I used on the PCT in 2010, which was basically shot and had lost most of it's loft after just one thru hike. A point I've made many times when recommending you guys on the PCT-L and Facebook sites. You have good stuff." -Shroomer

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"I LOVE my 20F sleeping bag now that I understand how to shake the down to the top -- and I'm showing it off to everyone -- it is AWESOME in quilt mode or half zipped on > 35 degree nights." -Raphael M.

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"I wanted to tell you all how much I love my ZPacks 20 degree bag! I have used it over 30 nights so far and it is far beyond what I could have expected. It seems so much warmer than a 20 degree bag and the shape and cut is the best I've experienced. Anyways, thanks and keep up the great work!" -Sam V.

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"I got your exceptional 20 degree down sleeping bag for my PCT thru-hike in 2013. Loved it and except for one incredibly chilly night in the desert where it went down to about 10 degrees, it was a complete trooper. After a good cleaning post-trail, it still is my primary sleeping bag here in the PNW." -Paul B.

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"IMHO your sleeping bags are the only bags Iíve ever used that are actually true to their ratings, and Iím a cold sleeper so others might think the ratings are off. But for me they are perfect. As a restless sleeper I canít sleep in mine zipped up, so I added my own elastic straps to keep it snug around me for cold nights, and that worked great." -Amy F.

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"Just thought I would drop you a line. Spent the past few weeks in the Cascades using the 30F bag. Its amazing. My girlfriend had already ordered a 10 degree after seeing it in use."-Mike H.

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"I wanted to let you know that I finally got to use my 10F sleeping bag. It was perfect, exactly what I needed. The size was right, and it was like sleeping in a pillow. I was camped at about 11,500 Ft on Mt. Rainier in my tent with light clothes and 40 mile an hour winds, in the teens at best. Was nice and cozy warm!" -Bradley D.

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"The sleeping bag I bought from you last year is fantastic. Perfect with the down hood! Extremely comfortable sleep, so thank you!" -Russel W.

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"I received my bag in time for my trip. This was a 50+ mile trip on the JMT from Onion Valley to Whitney Portal. I can't tell you how much I love my new 10F sleeping bag, it was perfect for the high elevations." -Lenora S.

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"Just letting you know that the sleeping bag I got from you guys is performing magnificently!" -Catherine B.

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"I just wanted to send another huge thanks your way! I absolutely LOVE, LOVE, LOVE my sleeping bag!!!! It is such a great thing when I buy a piece of gear that just works and there really isn't anything I would change about it; it does the job I need it to, pretty much exactly how I want and I can rely on it to do that on every trip! My sleeping bag from you is one of those items. I rave about it to anyone that cares about such matters :). This is my second season with it and so far it has been on several technical traverse where weight really mattered. Here is a photo of me in my bag from this past weekend at our ridge bivy along the Tantalus traverse near Squamish, BC. Thanks again for a great product! Feel free to post my comments!" -Lorraine C