Alpine AscentShell Bivy

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The cult-classic Alpine Bivy leveraging Helium AscentShell technology results in this: The bivy that has a drastically improved breathability rating which leads to less condensatio n and a more comfortable sleep. The step-in opening compared to the clamshell opening allows you to step out of your boots and straight into the bivy easily without any shimmying. Ideal for alpine pursuits and extreme weather. Show more