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Gamma Rock Pant


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Gamma Rock Pant Men's Lightweight, breathable, technical alpine pant constructed with two weights of stretchy yet durable textile that provide enhanced abrasion resistence and mobility. Gamma Series: Softshell outerwear with stretch.

Lightweight, breathable, technical alpine pant constructed with two weights of stretchy yet durable textile that provide enhanced abrasion resistence and mobility. Gamma Series: Softshell outerwear with stretch.

Anvil Grey
6 Detail Photo(s)
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S, M, L, XL, XXL
Regular, Short, Tall
340 g / 12 oz
Trim fit, Tapered leg
Sizing Chart: 


Trim fitting technical alpine pant constructed using lightweight, stretchy Fortius™ fabric, paired with a more durable Burly™ Double Weave textile in the knees and seat. A streamlined design keeps insteps seam-free to limit snags and abrasion, and built-in articulation in the knees aids freedom of movement.


The Gamma Rock Pant has a low profile webbing waist belt system that sits flat under a harness, adjusts fully and is integrated into the waistband for clean, easy use. Designed with climbing in mind, the system includes a webbing belt window for a chalk bag attachment.


A seamless instep design limits snags and allows the use of a more lightweight fabric for warm temperature comfort. The use of thoughtful design results in weight savings and increased comfort in all Arc'teryx products.


Reinforced in high impact areas with exceptionally abrasion resistant Burly™ Double Weave fabric, the body of the Gamma Rock Pant has full stretch mobility and breathability from lightweight Fortius™ 1.0 textile, a softshell staple in the Arc'teryx line-up.


The Rock Pant is a trim fitting alpine climbing design. Companion pieces to wear with it are a Phase base layer in the appropriate weight to manage moisture and the Gamma SL Hybrid Jacket in case of cool or sudden poor weather.

Learn More About This Product

Arc'teryx Fit Guide - Trim Fit

These trim fitting garments share motion-friendly traits with our Athletic fit, but are patterned with lower volume for reduced bulk. Our trim fit is sized for a base layer and a trim synthetic or down filled mid-layer

To find out how to calculate your body measurements, view our Sizing Charts:

Men's Tops | Men's Bottoms
Women's Tops | Women's Bottoms


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.

Full Feature List

  • Moisture-resistant outer face fabric
  • Breathable
  • Lightweight
  • Durable
  • Quick-drying
  • DWR finish (Durable Water Repellent) helps repel water from fabric surface
  • Stretchy fabric provides freedom of movement
  • Articulated patterning for unrestricted mobility
  • Gusseted crotch
  • Front fly with snap closure
  • Micro corded zipper pulls
  • Seamless instep to reduce abrasion
  • Laminated cuffs
  • Lace hook
  • Adjustable integrated webbing belt
  • Snap waist closure
  • Soft, brushed lined waist
  • Two hand pockets with zippers
  • Mesh lined hand pockets
  • Reinforced knees and seat
  • Webbing belt loop to attach a chalk bag


  • Fortius 1.0™—84% nylon, 16% elastane, 160 g/m². Lightweight, durable, non-insulated, stretchy nylon/spandex blend textile.
  • 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.


  • Machine wash in cold water.
  • Hang to dry.
  • Do not use fabric softener.
  • Do not iron.
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