Outdoor Research Helium Bivy (PFAS-Free) - Ultralight Waterproof Bivy Shelter (Pertex® Diamond Fuse) Jacket it combines an EPP shell

it combines an EPP shell

this set is perfect for building technical routes that demand precision

Maintains breathability

the Griffin 10 is a powerful tool for technical alpine environments

Outdoor Research Helium Bivy (PFAS-Free) - Ultralight Waterproof Bivy Shelter (Pertex® Diamond Fuse) Jacket it combines an EPP shellUltralight Shelter for Fast & Light Missions The Outdoor Research Helium Bivy (PFAS Free) is an award winning ultralight bivy designed for adventurers who prioritise speed, minimal weight, and dependable weather protection. Updated with Pertex Shield Diamond Fuse technology, it delivers improved durability while remaining exceptionally lightweight now 14% lighter than the previous generation. Fully seam taped and waterproof, it offers reliable