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The Helium AscentShell™ Jacket is our most advanced all-season shell, with exclusive Pertex® Shield Air 3L fabric and an alpine design for maximum mobility over rock, snow and ice.
Outdoor Research® gear is guaranteed to perform throughout the lifetime of the product.
Free shipping on orders $99+! Need it by the holidays? See our shipping page for all deadlines. Plus, extended returns through 1/31/25. Final sale items are not eligible for return.
The Helium AscentShell™ Jacket is the lightest, most breathable waterproof shell in the Outdoor Research line. Two powerful technologies fuse into one hard shell that far surpasses the performance of heavier jackets. The lightweight durability of Pertex® Diamond Fuse technology increases agility through rugged environments, and the breathable waterproof comfort of AscentShell™ technology excels while precipitation comes down. A high-mobility, low-bulk fit takes up less space in your pack and layers more efficiently with harnesses and backpacks. This minimalist piece is fully seam-taped and features external and internal chest pockets, a wire brim hood with Hoodlock™, and dynamic reach™ underarm panels that allow you to move freely without sacrificing protection from the elements. Designed in collaboration with Outdoor Research alpine ambassadors Emilie Drinkwater and Graham Zimmerman, this hard shell has been tested and trusted in the earth's harshest environments.
Quickly access your phone, snacks, and other stored valuables in this quick-zip pocket.
Hold in warmth and keep out weather with this essential hood.
Cinch the easily-adjustable drawcord at your hem to hold in excess fabric for a snugger fit.
Easily cinch your excess hood fabric for a customizable fit with or without helmet.
Easily adjustable wrist cuffs can be worn tight to seal out weather, or loosened up to accommodate large gloves.
*All sizing is based on your body measurement.We adjust the garment for intended fit and intended use.
Classic fit for comfort and ease of movement.
