The Helium Bivy Sack redefines minimalist shelter with its ultralight yet rugged design, crafted for solo hikers and climbers who prioritize mobility without sacrificing weather protection. Combining Pertex® Shield Diamond Fuse 2.5L fabric with seamless construction, this bivy delivers unbeatable waterproof and windproof performance while remaining breathable for comfort in unpredictable conditions.
### Key Features
* **Ultralight Pertex® Shield Fabric** – Offers durable, fully seam-taped waterproofing and wind resistance without added bulk.
* **No-See-Um Mesh Panel** – Bluesign® approved polyester mesh ensures ventilation and stargazing visibility while keeping insects out.
* **Clamshell Entry & Internal Fasteners** – Easy access with a streamlined opening and secure fly fasteners for quick setup.
* **High-Volume Toe Box** – Extra footroom enhances comfort during extended alpine bivvies or fastpacking trips.
* **Stable Single-Pole System** – Includes guy lines and stake loops for added stability in high winds, plus reflective accents for low-light visibility.
### Specifications
Material: Pertex® Shield Diamond Fuse 2.5L (outer), bluesign® polyester mesh (inner)
Closure: Clamshell design with dual internal fasteners
Anchor Points: 1 guy line loop, 2 stake loops
Weight: Ultralight (exact weight varies by size)
### Ideal For
* **Fastpackers & Bikepackers** – Compact protection for multi-day endurance trips where every ounce counts.
* **Alpine Climbers** – Reliable shelter during exposed bivouacs or summit pushes in harsh weather.
* **Minimalist Backpackers** – A streamlined alternative to tents for solo adventures under open skies.
*Note: Sleeping bag, pad, and pillows pictured are not included.*















