Helium UL Bivy Sizes:OS and a body-enhancing fit so

and a body-enhancing fit so you can explore comfortably and look good while doing it

ventilated

while LIGHTRANGE™ technology delivers optimum moisture management to keep you comfortable when it's blazing hot on the trail

easy-to-carry package

Helium UL Bivy Sizes:OS and a body-enhancing fit soWaterproof Protection Without the Weight. The Helium UL Bivy is built for ultralight backpackers, climbers, and fast packers who need waterproof protection and breathability in a minimalist shelter. Made with bluesign approved Pertex Shield NetPlus fabric from 100% recycled nylon, the Helium UL Bivy is newly updated for 2026 to deliver durable, lightweight performance with a fully seam taped design and waterproof PU coated floor for reliable weather