Outdoor Research Helium Bivy - Pewter Features_Wide Fit These allow the roll-top to

These allow the roll-top to be closed conventionally or vertically by clipping into the lateral daisy chains

trekking or motorbiking

strong and supremely packable

Strategically placed at the chest and back

The removable backframe

Outdoor Research Helium Bivy - Pewter Features_Wide Fit These allow the roll-top toThe Helium Bivy is Outdoor Research's lightest, best selling, and most awarded bivy sack of all time. Incredibly quick to set up and breakdown, the ultralight Helium Bivy is 14% lighter than its last generation, and has everything the outdoor minimalist needs to be comfortable. Thru hikers and bikepackers love the Helium for its refined footprint and reduced weight, and trust it for its durable, lightweight, waterproof Pertex Diamond Fuse technology.