The Helium UL Bivy blends bluesign® approved Pertex® Shield NetPlus® fabric, a waterproof PU-coated floor, and fully seam-taped construction to deliver ultralight, breathable protection for minimalist backpackers, climbers, and fast-packers.
Waterproof 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 protection. Dual passive ventilation flaps improve airflow and reduce condensation, while a high-volume toe box adds comfort through the night. A clamshell opening, single DAC aluminum pole, and six stakes/stake loops make setup quick and efficient in any terrain.
- 2.5L Pertex Shield Netpluswith Hydrophilic laminate
- 100% Recycled Nylon 30D ripstop
- 100% Nylon 40D ripstop with PU coated floor
- Fully Seam Taped
- Highly Breathable
- Lightweight
- No-See-Um Mesh
- Waterproof
- 2026 Updated Design
- Clamshell Opening
- Dual Passive Ventilation Flaps increases airflow and reduces condensation
- Four Aluminum Stakes
- High Volume Toe Box
- One Guy Line Loop
- Reflective Logo and Trims
- Single DAC Aluminum pole design
- Six Stake Loops