Helium Bivy™

Style# 40115OR

A true minimalist bivy for fast and light solo expeditions, the 18-ounce Helium Bivy is the lightest bivy we make. Credit the feathery waterproof, breathable Pertex® Shield+ fabric that doesn’t compromise on durability—the floor is 70D. This bivy’s no-nonsense clamshell design will handle seasons of adventuring to come.






  • Fabric Performance: Waterproof, Breathable, Ultra Lightweight, Fully Seam-Taped, Durable, No-See-Um Mesh, Hydroseal® Floor, Anti- Fungal Coating on Floor
  • Design Features: Sleeping Pad Straps, Five Stake Loops, One Guy Line Loops, Internal Mesh Pocket
  • Functional Details: Delrin® Single-Pole System


Fabric: Pertex® Shield+ 2.5L, 100% nylon, 30D ripstop upper - 100% nylon, 70D with TPU lamination floor

  • With Pole: 18.0 oz. / 510 g
  • Without Pole: 16.0 oz. / 453 g

Avg. Weight (oz./g): 18.0oz / 510g (With Pole)

Customer Reviews

excellent so far (Review by Cam)

i rated it at a "4" because I've only used a half dozen times but it has been flawless.
Pro's: lots of room, breathed well in semi-humid conditions, packs up really small, waterproof, pole works great, cheap!
Con's: I see the 2.5 layer not breathing as well as its 3 layer counterparts once the cold weather camping starts up but cannot say for sure, almost too roomy/ or baggy.

(Posted on 10/15/14)

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