The Outdoor Research Interstellar Jacket: Our Lightest, Most Breathable Hard Shell with Soft Stretch Comfort Product News

Outdoor Research hails from the Pacific Northwest, an area which consistently ranks as one of the wettest places in the United States. In a climate such as ours you soon learn to embrace the weather, ultimately resigning yourself to the fact that if you are to make the most of the incredible climbing, hiking, biking, skiing and paddling available on your doorstep, your waterproof jacket will need to become your second skin for many a dusk-till-dawn adventure. It's on these occasions that comfort and breathability are put to the test, as aerobic activity threatens to build up moisture on the inside of your shell and your focus turns to any areas restricting your movement.

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The more breathable your waterproof jacket the more versatile it becomes, so with this in mind we introduce the award winning Interstellar Jacket; now the lightest hard shell in our collection and undoubtedly one of the most comfortable waterproof jackets we've ever made.

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Totally waterproof, highly breathable and incredibly lightweight, the Interstellar has an innovative AscentShell™ membrane that provides high-exertion athletes with complete protection again rain, snow, wind and inclement weather, yet broadens their comfort zone throughout aerobic activity in changing conditions. AscentShell™ is a proprietary membrane created by an electrospun process where charged polymers form a fine, very breathable membrane that allows sweat vapour out, but stops water from coming in. This provides great mechanical stretch for full freedom of movement, and results in a lightweight laminate technology that saves precious weight during demanding endeavours.

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Ascentshell 3L, 100% nylon, 20D mechanical stretch ripstop face with 100% polyester 12D backer

Fabric Performance:

  • Waterproof and windproof
  • Air permeable
  • Breathable
  • Movement Mirroring-stretch
  • Laminated construction
  • FullyTaped seams

Design Features:

  • Fully Adjustable Helmet Compatible, Wire-Brimmed Halo- Hood
  • YKK Aquaguard® Zippers
  • YKK Aquaguard® Vislon Front Zipper
  • Internal Front Storm-flap
  • Stuffs into Left Hand Pocket
  • Dynamic reach underarm panels
  • Hook/Loop Cuff Closures
  • Zip Chest Pocket + Zip Hand Pockets


Men's and Women's
Trim Fit


M's: S – XXL
W's: XS - XL


  • M's: black/charcoal, glacier/baltic, pewter/lemongrass, ember/diablo
  • W's: oasis, samba, black


  • M's: 329 g in size L
  • W's: 285 g in size L




    Outdoor Research® is Designed by Adventure®. We provide Innovation and Inspiration for the Relentless Adventurer. Based in Seattle, Outdoor Research was founded in 1981. We are dedicated to building technically innovative, state-of-the-art clothing, headwear, gloves, gaiters, packing systems and sheltersinformed by real-world testing. All of our products are backed by the Infinite Guarantee®. We are committed to our core sports: alpinism, rock and ice climbing, hiking, backpacking, paddling, trail running, and skiing and snowboarding. Outdoor Research supports several organizations advocating environmental protection, education and the interests of mountaineers and alpinists. FOR THE JOURNEY AHEAD™

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