Outdoor Research Alpine AscentShell Bivy Color:Nimbus zip it up to utilize

zip it up to utilize the mock neck or unzip it to vent out unwanted body heat

To extend the life of your tent floor we recommend using a Big Agnes footprint - sold separately

Removable PU footbed with arch support for all-day comfort

5L / 85 oz

removable pocket clip and carabiner/bottle opener

Outdoor Research Alpine AscentShell Bivy Color:Nimbus zip it up to utilizeThe Alpine AscentShell Bivy is constructed to enable solo adventuring and fast and light movements in the mountains and beyond. Building on the reputation set by the cult classic Alpine Bivy, this new version leverages AscentShell x Pertex technology for a drastically improved breathability rating, leading to less condensation and more comfortable sleep. The step in opening allows you to step directly into your bed without the need to shimmy into the