Alpine AscentShell Bivy festival wear Because you needn’t lift your

Because you needn’t lift your eyes from the compass in order to look into the terrain

Designed for caving

Having sold more than 40

everyday underwear

even in extreme temps with up to 300lbs of pressure

Alpine AscentShell Bivy festival wear Because you needn’t lift yourThe cult classic Alpine Bivy leveraging Helium AscentShell technology results in this: The bivy that has a drastically improved breathability rating which leads to less condensation 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.