Hiking, climbing, or skinning uphill—the Gamma Jacket keeps you moving through rugged terrain. Wind-resistant and water-repellent, it shields from the elements while maintaining max breathability on that final summit push. High-stretch material and articulated patterning make overhead movements a breeze, while durable face fabric stands up to rough scrambles.

What's been updated: Updated with increased recycled content and a FC0 DWR (Durable Water Repellent) treatment that’s free from intentionally added PFAS. Two zippered chest pockets provide added storage, while revised design lines create a more streamlined fit.

Technical features

  • Weather resistant

  • Breathable

  • Durable

Construction

  • Brushed backer adds warmth and soft comfort

  • Recycled Wee Burly™ double-weave nylon face fabric for breathable wind resistance

Cuff & Sleeves configuration

  • Shaped cuffs with partial elastic provide coverage and seal out drafts

Design & Fit

  • Stretchy fabric allows you to move more freely

  • Regular fit provides freedom of movement

  • Garment Centre Back Length: Size M is 29"/73.5cm - Varies by size

Fabric treatment

  • DWR (Durable Water Repellent) finish repels moisture and is free from intentionally added PFAS

Hem configuration

  • Adjustable hem draw cord seals out drafts

Pocket configuration

  • Two hand pockets with zippers

  • Two chest pockets