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Size Bivy
Seasons NA
Your kit is ultralight, you move fast and you have to be ready to sleep anywhere from soggy snow caves to drippy granite slabs. Sounds like youre the perfect candidate for the Marmot Alpinist Bivy. Weighing in at just 14-ounces and packing down to about the size of a water bottle, this bivy offers serious light-and-fast advantages over your tent. Marmots own waterproof and breathable fabric fends off foul weather without leaving you sweating underneath when the skies clear. All you really need is your sleeping bag, a bivy and a flat place to rest your weary bones.
Marmots own MemBrain waterproof breathable fabric offers supreme weatherproofing in a 2.5-layer package that does away with heavy 3-layer constructions and internal linings
Despite its feathery-light weight, MemBrain is highly abrasion resistant
Fully taped seams offer additional protection against precipitation and wetness
40D Nylon floor protects against abrasive sleeping surfaces and offers high-end water-resistance
Bottom Line: Give your sleeping bag its own hardshell jacket.
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