Black Diamond

<p>For done-in-a-day summit plans that go sideways. The BD Twilight Bivy Sack offers a minimalist option for emergency overnights. It also makes a good sleeping bag cover if you're planning to rest under a  tarp shelter or inside a snow cave. The silicone Nanocell coating is water resistant and breathable, while keeping the fabric extremely lightweight, soft and packable.</p><ul><li>Made of single-layer NanoShield nylon with a silicone coating that's breathable and resists wetting out</li><li>Frameless construction keeps it lightweight</li><li>Across-shoulder zip allows easy entry and exit, and lets you sit up to eat or read</li><li>Mesh panel across opening allows ventilation</li></ul>

Black Diamond Twilight Bivy Sack

A measurement based on the longest point of the tent.

A measurement based on the widest points of the tent.

Square metre measurement of a tent’s usable space. Does not include vestibules.

Includes just the tent, poles, and the fewest pegs and guylines needed to properly set it up.

Includes the full tent with its stuff sack, repair swatches, and all the guylines and pegs.

The number of average sized people that the product can comfortably sleep.

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Black Diamond Twilight Bivy Sack

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