Helium Bivy coolers OUTSIDE: 17 7/8” × 17

OUTSIDE: 17 7/8” × 17 1/2” × 33 1/2”

Flat Out Seams

Valve-free air expelling design for compact packing

super strong knit that meets Danner's rigorous standards for durability

Helium Bivy coolers OUTSIDE: 17 7/8” × 17The 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 is significantly 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