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Men’s Filament Pullover and Women’s Filament Jacket

Author: Outdoor Research

August 21, 2013

Featuring an incredible warmth-to-weight ratio, the ultra-lightweight Men’s Filament Pullover™ and Women’s Filament Jacket™ are never-leave-it-behind down-insulated layers. Useful as fall belay jackets on its own or as insulation under a ski jacket, the Filament cuts the chill when worn alone in cool weather and holds in the heat as a mid-layer in truly nasty conditions.


The super-packable, DWR-treated 10D Pertex® Quantum fabric sheds moisture, further increasing the versatility of this featherweight, compressible, year-round down pullover.


Shop the Men’s Filament Pullover and Women’s Filament Jacket now.

Outdoor Research

Outdoor Research® is dedicated to inspiring the journey ahead with award-winning technical apparel and accessories. Based in Seattle since 1981, we are committed to improving our customer’s experience through innovative materials, purpose-driven features, and versatile products that are backed by our Infinite Guarantee®. We rely on the real-world testing of our athlete ambassadors, mountain guides, and local adventurers involved in our core sports: alpinism, rock and ice climbing, hiking, backpacking, paddling, trail running, and backcountry skiing and snowboarding. We’re here for the fun, adventure, excitement, and For the Journey Ahead™. Get to know us at or follow along on the journey via Facebook, Instagram, Twitter, and YouTube.