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ZPacks™ Pertex Quantum Bivy


Weight - 5.8 ounces (164 grams)   /  $195
Detachable screen adds - .8 ounces (23 grams)
Length - 7 feet (213 cm) - comfortable up to about 6' 2" (188 cm)
Girth from shoulders to hips - 72 inches (183 cm)


This Bivy has a water-proof bathtub Cuben Fiber floor, combined with a water-resistant, breathable Pertex Quantum GL nylon top. This bivy is great for protecting against dew, condensation, and light spray under a tarp or minimal shelter.

  • Fully waterproof 1.0 oz/sqyd Cuben Fiber bathtub floor, with taped floor seam. The Cuben fiber floor has 6 inch (15 cm) walls to protect against ground water.
  • Water Resistant .75 oz/sqyd Pertex Quantum GL top is coated with DWR to help shed dew, condensation, and light rain spray to protect your sleeping bag. The nylon top is highly breathable so you don't overheat in warm weather.  The top is not waterproof, it will soak through in prolonged exposure.
  • Top zipper entry is easy to get in and out of, and easy to open up for venting.
  • The bivy will add some warmth to your sleep system- about as much as sleeping with just a sheet at home. On hot summer nights you may not need a sleeping bag.
  • Detachable bug screen Velcros in place over your face and chest. It clips at the bottom corners to keep it tucked in. To get in or out just unclip one corner. The screen weighs .8 ounces (23 grams), bringing the total weight to 6.6 ounces (187 grams) if the screen is used.
  • A loop over your face allows you to raise the screen off your upper body. Attach the included elastic cord to your tarp or to a tree branch overhead.
  • There are loops at the four corners and at the sides to secure the bivy to your tarp to keep it in place.
  • A small 5" x 6" Cuben Fiber stuff sack is included in the price and weight.
  • 1 year warranty against defects in materials or workmanship on all ZPacks gear.

There may be a wait time for this item. Please see the notice at the top of the page.

Pertex Quantum GL Bivy
5.8 ounces (164 grams) $195
This item has been replaced by our Splash Bivy.


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"I wanted to write to you and let you know how happy I am with the bivy bag you built for me. I've been out several times with it and absolutely have enjoyed every minute of it. I was initially a little skeptical about how far the bug netting goes down, but it is fine. The breathable fabric on top of the bivy bag was a good call. Since I run so hot, it allows my bag to breathe and so I'm not sweating inside of my bag." -Matthew P.