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Gamma LT Jacket Men'sLightweight, air permeable, softshell climbing jacket with stretch.


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Gamma LT Jacket Men's Versatile, durable, lightweight softshell jacket delivering wind and weather protection, air permeable comfort and freedom of movement. Gamma Series: Softshell outerwear with stretch | LT: Lightweight.

Versatile, durable, lightweight softshell jacket delivering wind and weather protection, air permeable comfort and freedom of movement. Gamma Series: Softshell outerwear with stretch | LT: Lightweight.

Adriatic Blue
6 Detail Photo(s)
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XS, S, M, L, XL, XXL
445 g / 15.7 oz
Athletic Fit, Hip Length
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The Gamma LT is the result of intelligent, purpose driven design and the Arc’teryx commitment to craftsmanship. 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 across a range of weather conditions and levels of activity. This versatile performance makes the Gamma LT an essential softshell for active alpine and backcountry endeavors.


Refinement and smart innovation are Arc’teryx design obsessions. To facilitate heat dump without inadvertent opening, 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 little thing clearly shows the Arc’teryx attention to detail.


Alpine versatility requires exceptional freedom of movement, so Arc’teryx leverages articulated patterning, underarm gussets and stretch materials to help the Gamma LT move with the body. The Arc’teryx regular fit fits easily under a belay parka, allows room for midweight layers, yet is streamlined and athletic. The Gamma’s hip length hem and streamlined patterning allow it to lie comfortably under a harness or pack belt. 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
  • Mechanical stretch textile for unrestricted mobility
  • Arc'teryx Nu water repellent treatment
  • Articulated patterning for unrestricted mobility
  • Gusseted underarms
  • Athletic fit for a slimmer more flattering profile
Collar Configuration
  • Laminated chin guard
  • Soft brushed-lined collar
Zippers & Fly Configuration
  • Full length Vislon front zip with windflap
  • No Slip Zip™ front zipper
Cuff & Sleeves Configuration
  • Laminated cuffs
  • Stretch gusset cuffs
Hem Configuration
  • Laminated hem
  • Adjustable hem drawcord
Pocket Configuration
  • Two hand pockets with zippers
  • Internal laminated pocket with zip
Logos & Label Configuration
  • Embroidered logo


  • 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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