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Ships within 48 hours · Estimated delivery Oct 9 - Oct 14
9mm to 11mm for lead and top-rope climbing
Quick and easy bridge adjustment (also fits larger boot sizes)
Highly breathable
built for versatility
Outdoor Research Helium Bivy - Coyote Colour:Coyote 9mm to 11mm for leadThe Helium Bivy is Outdoor Research's lightest, best selling, and most awarded bivy sack. 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. Incredibly quick to set up and break down, the ultralight Helium Bivy is 14% lighter than its last generation and has everything the outdoor minimalist needs to be comfortable. A clamshell
