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Gamma LT Jacket


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Gamma LT Jacket Women's Light, durable, versatile women’s softshell jacket offering wind and weather protection, air permeable comfort and freedom of movement. Gamma Series: Softshell outerwear with stretch | LT: Lightweight.

Light, durable, versatile women’s softshell jacket offering wind and weather protection, air permeable comfort and freedom of movement. Gamma Series: Softshell outerwear with stretch | LT: Lightweight.

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XS, S, M, L, XL
390 g / 13.8 oz
Athletic Fit, Hip Length
Sizing Chart: 
Gender Equivalent Product:


Designed to provide exceptional versatility and performance, the Gamma LT Jacket employs advanced materials and thoughtful Arc’teryx design in a softshell that spans a wide range of alpine and backcountry activities. Made from lightweight, hardwearing Wee Burly™ softshell fabric, a DWR (durable water repellant) treated nylon/polyester double weave, the Gamma LT is strong, light and provides moderate warmth and weather protection. The fabric blends wind resistance with air permeable comfort, has elastane fibres for built-in two way stretch, and is exceptionally durable for its weight. Its wind and water resistance is complimented with a textured backing that adds thermal comfort and moisture transport during active use in cool weather and marginal conditions.


Continual refinement is a principle of Arc’teryx design. The Gamma LT employs the ingenious No Slip Zip™. The zipper’s unique construction involves a series of bumps on the top few teeth to prevent self-opening, but, as in many Arc’teryx pieces, the zipper may be rapidly opened with a single hand for almost instantaneous heat dump. This seemingly small innovation clearly shows the Arc’teryx attention to detail.


Purposeful design is an Arc’teryx commitment. This includes a no-compromise approach when developing specifically for women. With a focus on athletic freedom and performance, the Gamma LT has a women’s specific design that optimizes the fit and enhances ergonomic freedom. Articulated patterning, underarm gussets and stretch materials free the jacket to move with the body. The Gamma LT’s hip length hem and streamlined patterning allow it to lay comfortably under a harness or pack belt. The Arc’teryx regular fit is streamlined and athletic while allowing room for midlayers, and stretch gusset cuffs provide a secure fit, but push up easily for ventilation.

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Highly breathable textiles with stretch and differing degrees of thermal efficiency that can be worn as water-resistant outer layers. High degree of abrasion resistance.

LT | Light Weight

Built with highly durable top performance materials but designed with a streamlined minimalist set of features to provide very light weight.

Full Feature List

Technical Features
  • Weather resistant
  • Moisture-resistant outer face fabric
  • Breathable
  • Highly durable
  • Wind resistant
  • DWR finish (Durable Water Repellent) helps repel water from fabric surface
  • Mechanical stretch textile for unrestricted mobility
  • Soft, inner face-fabric is comfortable next-to-skin
  • Gender specific patterning
  • Articulated patterning for unrestricted mobility
  • Gusseted underarms
  • Stretch wrist gussets
  • Athletic fit for a slimmer more flattering profile
Hood Configuration
  • Helmet compatible StormHood™
  • Adjustable hood drawcords
Zippers & Fly Configuration
  • Corded zipper-pulls reduce noise and are easy to grab
  • Full length Vislon front zip with windflap and chinguard
Cuff & Sleeves Configuration
  • Laminated cuffs
Hem Configuration
  • Laminated hem
  • Adjustable hem drawcord
Pocket Configuration
  • Internal chest pocket with laminated zip
  • Two hand pockets with zippers
Logos & Label Configuration
  • Embroidered logo


  • Burly™ double weave—46% nylon, 46% polyester, 8% elastane, 275 g/m². A hard-wearing, durable, stretch woven fabric with a smooth outer face and a soft inner face that is comfortable next to the skin. A DWR (durable water repellent) coating helps shed moisture.
  • Wee Burly Double Weave - 56% nylon, 34% polyester, 10% elastane


  • Machine wash in warm water (30°C).
  • Wash dark colours separately.
  • Tumble dry on low heat.
  • Iron on low heat.
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