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From week-long backpacking adventures to epic alpine rock routes, prepare for unexpected thunder showers and bone-chilling winds with the Mammut Men's Segnas Jacket. The guaranteed waterproof and breathable Gore-Tex Active shell fabric allows the jacket to weigh in at just 11 ounces and pack down small so you'll always have space to bring it along. 

  • Three-layer Gore-Tex Active shell fabric is exceptionally light and packable while providing guaranteed waterproof and breathable protection
  • Fully taped seams and spray-proof zippers keep wet weather out
  • Pre-shaped sleeves allow you to move freely while climbing
  • Helmet-compatible fixed hood fully adjusts for a perfect fit
  • Large front zippered pockets can be utilized for ventilation or gear storage
  • Adjustable cuffs and drawcord hem keep weather out and warmth in
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    This Jacket is super light for a goretex jacket. I thought it would be the really thin see through kind of fabric for this weight. The fabric seems really tough and the fit is just about perfect. Nothing you don't need here. Just great protection and fit. Wish there was a pant to go with it. great style and super clean design.

    Is it true to fit ?or does it run small?...

    Is it true to fit ?or does it run small?