BreakdownThe Big Agnes Three Wire Bivy is designed to be your go-to, four-season, lightweight shelter option when it really counts. It's made of ultralight nylon, three-layer waterproof yet breathable fabric with a micro-porous membrane to enhance moisture management. Add to that it's CORDURA® rip-stop fabric bottom and you have an ultra-durable bivy that's lightweight, durable and waterproof.
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