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Lightweight, breathable, and wind and water-resistant, the Rab Women's Strata Insulated Vest is made for quick ascents through the alpine. With breathability in mind, Rab combined a Pertex Microlight fabric with Polartec Alpha insulation resulting in a lightweight vest that provides some protection from the elements, while still maintaining a high level of breathability, so you can keep your heart rate up without feeling like you're wearing a tarp. The Strata can be worn on its own on cold and clear days, while the slim fit makes it equally as functional under a shell when the skies turn grey. 

  • 20D Pertex Microlight fabric with DWR finish
  • Polartec Alpha insulation (80g)
  • Slim fit
  • Drawcord at hem
  • 2 zippered hand, 1 internal zippered/stuff sack pockets
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Rab & Polartec Alpha

Polartec Alpha is the latest evolution of synthetic insulation, offering a rare combination of light-weight warmth and true breathability.



We use Alpha throughout our Strata collection, which was designed and tested with our professional athletes on an expedition to climb new lines in Arctic Norway.