Black plastic component on a white background

Red and black bivy on a light gray background

Set of metal poles on a white background

Close-up of a bivy fabric with a focus on texture.

Close-up of a tent zipper with a black zipper pull on a gray background

Black and green bivy on a light gray background

Gray and green sleeping bag in a light gray bivy

Outdoor Research Helium UL Bivy

Outdoor Research

$449.95

Colour:

Light Pewter Spice

Variant

1% for the Planet We'll donate $4.50 from this purchase to environmental charities.

Features

Fabric Performance:

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

Design Features:

2026 Updated Design
Clamshell Opening
Dual Passive Ventilation Flaps increases airflow and reduces condensation
Four Aluminium Stakes
High Volume Toe Box
One Guy Line Loop
Reflective Logo and Trims
Single DAC Aluminium pole design
Six Stake Loops

Specifications

Fabric:

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

Weight: 511 g

Outdoor Research Helium UL Bivy | Latest Model

Waterproof Protection Without the Weight

The Outdoor Research Helium UL Bivy is an ultralight, weatherproof shelter built for backpackers, climbers, and fast-packers who need reliable protection with minimal weight.

Updated for 2026, it features bluesign® approved Pertex® Shield NetPlus® fabric made from 100% recycled nylon, delivering lightweight durability with dependable waterproof and breathable performance. A fully seam-taped design and PU-coated waterproof floor help keep you dry in wet and unpredictable conditions.

Dual passive ventilation flaps improve airflow and help reduce condensation, while the high-volume toe box provides extra space and comfort for sleeping. The clamshell opening, single DAC aluminium pole, and six included stakes allow for quick and secure setup in a wide range of terrain.

Lightweight, compact, and built for serious adventures, the Helium UL Bivy is ideal for minimalist alpine missions and ultralight overnights.