- Waterproof, breathable Hyperlite Storm fabric
- 10,000mm laminated nylon 40D waterproof base
- Side wall maximizes sleeping bag loft
- Vented zip with storm flap
- U-Shaped zippered entrance
The RAB Storm Bivi is a simple, lightweight bivy bag that will keep you dry when the weather turns bad. Top quality materials and workmanship make the Storm Bivi a great value.