Helium UL Bivy

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.

Design Features:

• 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

Fabric Performance:

• Fully Seam Taped
  
• Highly Breathable
  
• Lightweight
  
• No-See-Um Mesh
  
• Waterproof

Fabric:

• 2.5L Pertex Shield Netpluswith Hydrophilic laminate
  
• 100% Recycled Nylon 30D ripstop
  
• 100% Nylon 40D ripstop with PU coated floor