New product, technology & Deals
Receive updates by email and be the first to know

Helium Bivy


Our Lightest Waterproof Bivy
COLOR pewter
SIZE: 1size - In stock
free shipping - This one’s on us!
Infinite Guarantee
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 :
Pertex® Shield+ 2.5L
100% nylon
30D ripstop upper - 100% nylon
70D with TPU lamination floor
Weight :
18oz / 510g Avg. Weight for size One Size
  • Fabric Performance:
  • Waterproof
  • Breathable
  • Ultra Lightweight
  • Fully Seam-Taped
  • Durable
  • No-See-Um Mesh
  • Hydroseal® Floor
  • Design Features:
  • Sleeping Pad Straps
  • Five Stake Loops
  • One Guy Line Loop
  • Internal Mesh Pocket
  • Functional Details:
  • Delrin® Single-Pole System


my first bivy and happy


I have only used this a few times backpacking in the UK, I got the bivy to use with my tarp instead of a tent. I find most tents are quite heavy with small internal space, the backpacking tents are lighter but smaller again. I am 6'1" and a large frame and do not like being cramped in a small tent. This bivy with a tarp is lighter and a lot more spacious. The bivy kept me warm and dry in heavy windy rain, it blew rain under the tarp, strangely inside the bivy it was very dry due to the wind blowing across the bivy. On another occasion with the bivy sheltered from the wind, the inside of the bag was damp from condensation. The bag likes the wind and is drier in windy conditions, if out of the wind the bag does not breathe so well and is damp inside. I am very happy with the bivy.

Salisbury, UK



4.0 1



Hi is the helium bivvy a 'hooped bivvy' ie with a hooped pole not a straight one? thanks Paul


The Helium Bivy pole is flexible and bends into an arch shape when in use.