- Sewn-in flexible wire creates air space
- Dual-sided zipper and mesh covered opening
- RF welded tie-in point for secure anchoring
- ToddTex single-wall fabric
- Taped seams
A waterproof bivy sack with an integrated, waterproof tie-in point, the Big Wall Hooped Bivy is ideal for sleeping through bad weather on the wall. Big-wall-specific design incorporates a strong waterproof tie-in point.