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Helium Bivy


Award-winning for its ultralight prowess, made even lighter
COLOR pewter
SIZE: 1size - In stock
Infinite Guarantee
Our Helium Bivy used to be the best-selling, award-winning, lightest shelter offered by Outdoor Research - until we outshone it with this: The newly renovated Helium Bivy. 14% lighter than its previous version, the Helium Bivy is ideal for multiday minimalists who are looking to trade weight for speed, agility, and performance. Thru-hikers and bikepackers love the new Helium for its refined footprint and reduced weight, and trust it for its feathery waterproof and breathable Pertex® Shield+ fabric that doesn't compromise on durability. A no-nonsense clamshell opening is sure to handle seasons of adventuring to come.
Fabric :
UPPER: Pertex® Shield 2.5L
100% nylon
30D ripstop
LOWER: 100% nylon
40D with TPU lamination floor
Dimensions :
82" x 26" x 19.75" (length x top width x top height)
Weight :
16.8oz / 476g 
Fabric Performance :
Ultra Lightweight
Fully Seam-Taped
No-See-Um Mesh
Design Features :
Reflective Logo and Trims
Two Stake Loops
One Guy Line Loop
High Volume Toe End
Clamshell Opening
Two Internal Fly Fasteners
Functional Details :
Delrin® Single-Pole System


light and packable


As a wildland firefighter, I spend a lot of my summer sleeping under the stars. I learned after my first season how much difference a bivy sack can make when you wake up covered in morning dew at 5am and you have to pack up to go back on the line. This bivy is small enough to pack away without taking up much room at all. Its water resistant enough that morning dew is no longer an issue (I have not slept in it in the rain yet). And it is tough enough to use on a 14 day roll up here in the pacific northwest. If you want to pack light, keep dry, and protect your sleeping bag from being scraped up, this is for you.

Pacific Northwest



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