Interstellar AscentShell Bivy

Four-season shelter with AscentShell™ technology for superior breathability, waterproofness, and lightweight comfort
In stock

Interstellar AscentShell Bivy


Sharing the same name as Outside Magazine's Gear of the Year award winner, the Interstellar AscentShell Bivy is the waterproof, versatile bivy choice for adventurers looking for a little something extra out of their shelter. A newly designed side entry makes getting in and out of your shelter faster and easier than ever before, while innovative zipper design and built-in sombrero allow you to sit up and perform tasks (like cooking and packing) without stepping outside.

Since 2016, Outdoor Research's proprietary AscentShell™ technology uses an electrospun process to create a 3L construction that breathes faster, weighs less, stretches more, and far surpasses the comfort of traditional waterproof membranes. Learn more about the science behind our breathable waterproof AscentShell technology right here.


Product :

Fabric :
Ascentshell™ 3L, 100% nylon, 20D mechanical stretch ripstop face with 100% polyester 12D backer, 100% nylon, 40D ripstop with TPU lamination floor

Weight :
19.9 oz/546 g


Fabric Performance
Air Permeable
Fully Seam-Taped
Large No-See-Em Mesh Screen

Design Features
Delrin® Single-Pole System
Reflective Logo and Trims
Glow-in-the-Dark Zipper Pulls
Large Side Opening
One Guy Line Loop
Two Stake Loops
High Volume Toe End
Multi-Configuration allows you to sit up
and organize gear while in bivy

Functional Details
Derlin® Single-Pole System

Top of bivy (width): 26"
Foot of bivy (width): 19.5"
Length: 82"
Packed in stuff sack: 12.25" x 3.25"

Rating and reviews


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