Outdoor Research Alpine AscentShell Bivy - nimbus

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 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.

Features of the Outdoor Research Alpine AscentShell Bivy

• Waterproof
• Breathable
• Ultralight
• Fully Seam-Taped
• Durable
• No-See-Um Mesh
• Single-Pole System
• Two Stake Loops
• One Guy Line Loop
• High Volume Toe End
• Extra Head Room to Store Gear
• Large Side Opening
• Fly Fastener Exposes Mesh Screen
• Extra Large Mesh Screen for Star-gazing