Master the Universe.

Minimalism. Utility. Durability. The Cosmic Jacket is for high-alpine purists seeking all three, in our most lightweight construction to date. 



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Updated for 2014, the Cosmic Jacket is lighter, more functional, and better-fitting than ever. Our new proprietary Private Reserve 3L fabric sheds weight and adds comfort without compromising durability, and a full redesign of the shoulders and sleeves offers improved range-of-motion while reducing the amount of fabric required. The Cosmic is aimed at the efficient backcountry traveler, with the trimmest fit of the TREW shells and a design focus that eliminates excess baggage wherever possible. Minimal, however, does not equate to spartan; the Cosmic still features a full complement of internal and external storage options, a fully adjustable helmet-compatible hood, and our ergonomic-fit stretch powder skirt to seal out the storm.


  • NEW Private Reserve 3L fabric
  • Rugged, smooth 140-denier nylon plain-weave w/ DWR
  • 20k/20k waterproof/breathable DERMIZAX EV membrane 
  • Supple 20-denier nylon tricot backer
  • NEW Articulated shoulder/arm with low-profile curved-seam construction
  • NEW YKK Aquaguard® VISLON center front zipper
  • Ergonomic powder skirt with 3-point pant attachment
  • Adjustable, helmet-compatible fixed hood
  • Dual zippered handwarmer pockets
  • Dual cross-access pack-friendly chest pockets, one with cord port
  • Two internal drop pockets
  • Wrist pass/stash pocket
  • Microsuede chin guard
  • Headphone cord loop at collar
  • YKK Aquaguard® zippers on all exposed openings
  • 27 ounces



TREW builds for the rigors of backcountry freeriding, using materials and construction methods that reflect our commitment to quality, durability, and innovation. We work closely with our factory during all stages of development and production to ensure consistency with our highest standards, with the constant goal of making our garments lighter, better fitting, and more functional without sacrificing durability.  


Private Reserve 3-Layer Fabric

Private Reserve 3L blends rugged durability with lightweight performance and flexible comfort. After two years of development and testing, we are proud to offer this proprietary waterproof breathable fabric in all of our hardshell garments. 

FACE: 140-denier nylon plain-weave with a Durable Water Repellent finish

By employing a high-density weave, our face fabric that not only feels smoother and softer, but it sheds snow and water better than ever. Despite its supple hand, Private Reserve 3L retains our trademark durability and high-abrasion resistance. 

DERMIZAX® EV is a proven and highly versatile 20k/20k-rated waterproof breathable polyurethane laminate manufactured specifically for heavy-duty applications. Its vapor-permeable hydrophilic structure allows water vapor to pass through, and expands as your body temperature rises to increase breathability during heavy exertion. It is 100% windproof, and does not lose its waterproofing performance when stretched repeatedly over time.   

BACKER: 20-denier nylon tricot knit

Our internal backer is a smooth, 20-denier nylon tricot that not only lends a new level of comfort to our durable hard shell garments, but offers enhanced breathability and wicking performance compared to our previous backing fabric. 

The TREW Lifetime Warranty:
TREW confidently stands behind our manufacturing, and we guarantee TREW products against defects for the full lifetime of the product. 
We will immediately repair or replace any defective product discovered upon receipt by the customer.  In addition, if any TREW product does not meet satisfactions with intended performance and function, return it to us for a full refund, repair, or replacement at our discretion.