Black Diamond Big Wall Bivy Long

A great bivy sack protects you and your sleeping bag from the elements, adds warmth to your night and keeps the bugs out. Our Hooped and Big Wall Bivys do all this and more. Made from breathable and waterproof ToddTex, both bivy sacks incorporate a wire rod that’s sewn directly into the hood of the sack—so there’s nothing to set up and no parts to lose. All seams have been factory seam taped for total waterproofness and both ends of the bag are “boxed” so they won’t cramp your toes or compress sleeping bag loft. The Big Wall Bivy is great for use on a portaledge or any time a full-strength tie-in point is a necessity. By using RF welded seams, this tie-in point is completely waterproof—meaning no water can sneak in to soak you and your sleeping bag. Both models are available in Standard and Long.

- Extremely versatile, waterproof bivy sack
- Wire rod is sewn into the hood of the sack—no parts to lose and easy to set up
- Boxed head and foot areas keep things roomy