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Zpacks™ "Zero" Ultralight Backpack

This item has been replaced by the Nero.

Three Sizes to Choose From:

Size Small:
Body Volume: About 1,700 cubic inches / 27.5 liters
Weight: 4.0 ounces / 113 grams
Body Dimensions: 10" wide x 6" deep x 28" tall
(25.5cm x 15cm x 71cm)

Size Medium:
Body Volume: About 2,200 cubic inches / 36 liters
Weight: 4.2 ounces / 119 grams
Body Dimensions: 12" wide x 6" deep x 29" tall
(30.5cm x 15cm x 74cm)

Size Large:
Body Volume: About 2,800 cubic inches / 44 liters
Weight: 4.6 ounces / 130 grams
Body Dimensions: 13" wide x 6.5" deep x 31" tall
(33cm x 16.5cm x 79cm)

Two Materials to Choose From:

1.43 oz/sqyd Cuben Fiber is difficult to puncture or tear and can last for a full 2,500+ mile thru-hike with some care and probably some repair tape. Tape sticks well to this material so repairs in the field are a cinch. Choose this material if you want the lightest pack possible.

2.92 oz/sqyd Cuben Hybrid material is the same Cuben fiber as above, except with a protective layer of 50 denier Polyester on the outside which gives it more strength, prevents fraying, and gives it a nice solid color. It is very tough and should last longer than a thru-hike. Choose this material if weight is not as critical and you want a pack that can take more abuse. The Arc Blast backpacks are made from this material.


The Zero is built just like the regular backpacks except that by default it has zero pockets or options. Add just the pockets and options you need to create a customized minimalist backpack.

  • Comfy 3/8" thick by 2.5" wide padded contoured shoulder straps. A daisy chain and sternum strap are now included in the price and weight. A belt and other options are available below.
  • Bonded reinforcements behind the shoulder straps (and belt if you add one), for a super secure hold.
  • All Zpacks gear has a one year warranty against defects in materials or workmanship.
  • For more info check out the Backpack FAQs.
Order the Backpack:

Backpacks are made to order and are currently shipping in about one week. There may also be lightly used gear in our Bargain Bin.

This item has been replaced by the Nero.
1.43 oz/sqyd Cuben Fiber Zero Backpack
2.92 oz/sqyd Cuben Hybrid Zero Backpack
Size Small Shown:

Click for larger image