Ideal for alpine pursuits and extreme weather, the Outdoor Research Alpine AscentShell bivy combines the cult-classic Alpine Bivy with Helium AscentShell tech for drastically improved breathability.
- Helium AscentShell technology leads to less condensation and a more comfortable sleep
- Compared to a clamshell opening, the large, step-in opening allows you to step out of your boots and straight into the bivy easily without any shimmying
- Durable, waterproof and breathable fabric is fully seam-taped for protection from the elements
- Fly fastener exposes the extra-large mesh screen for stargazing
- No-see-um mesh helps keep the bugs out
- High-volume toe end, plus extra head room to store your gear
- Single-pole system allows for quick setup and breakdown
- 2 stake loops; 1 guyline loop
- Weighs: 1 lb. 2.6 oz. with pole and 1 lb. 0.8 oz. without
Imported.
View all Outdoor Research Bivy Sacks| Best Use | Backpacking |
|---|---|
| Seasons | 3 - 4-season |
| Sleeping Capacity | 1-person |
| Weight | With pole: 1 lb. 2.6 oz.; without pole: 1 lb. 0.8 oz. |
| Packed Size | 3.5 x 12.25 inches |
| Bivy Length | 83 inches |
| Shoulder Width | 28 inches |
| Ultralight | Yes |
| Sustainability | Contains materials that meet the bluesign® criteria |