Helium UL Bivy Bag

Description

The Outdoor Research Helium UL Bivy provides ultralight, waterproof protection for backpackers, climbers, and fast-packers who demand minimal weight without sacrificing performance. Designed for 2026 with updates for durability and functionality, it delivers a reliable shelter that’s easy to set up and highly breathable.

Constructed from bluesign® approved Pertex® Shield NetPlus® fabric using 100% recycled nylon, the bivy features a fully seam-taped design and a PU-coated floor for complete weather protection. Dual passive ventilation flaps reduce condensation, while a high-volume toe box adds comfort for overnight use. A clamshell opening, single DAC aluminum pole, and six stakes with stake loops make setup efficient on any terrain, making it a trusted choice for ultralight adventurers.

 

Outdoor Research Helium UL Bivy Bag Features

• Ultralight, waterproof bivy for backpacking, climbing, and fastpacking
• 2026 updated design for improved durability and performance
• Fully seam-taped construction with PU-coated floor for complete weather protection
• Dual passive ventilation flaps for increased airflow and condensation reduction
• High-volume toe box for overnight comfort
• Clamshell opening for easy entry and exit
• Single DAC aluminum pole design for fast setup
• Includes six stake loops and four aluminum stakes
• Reflective logos and trims for visibility in low-light conditions
• One guy line loop for added stability

 

Specifications

Fabric	2.5L Pertex® Shield NetPlus with Hydrophilic Laminate, 100% Recycled Nylon 30D ripstop, 100% Nylon 40D ripstop PU-coated floor
Weight	511 g / 18.02 oz
Ventilation	Dual passive ventilation flaps
Setup	Single DAC aluminum pole, clamshell opening, six stake loops
Other Features	High-volume toe box, reflective logos and trims, one guy line loop