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Gamma Pant

trail, travel, and backpacking

Expert reviewed

Topic summary

trail, travel, and backpacking

Key takeaways

  • Fortius softshell fabric
  • Articulated knees and gusseted crotch
  • Integrated adjustable webbing belt
  • DWR (Durable Water Repellent) finish
  • Two zippered hand pockets, one zippered thigh pocket
  • Excellent freedom of movement and stretch

Intended uses

  • Hiking and backpacking
  • Alpine climbing approaches
  • Cool weather trail running
  • Light mountaineering

Verification notes

Evidence: expert reviewed. Specifications verified from manufacturer data. Last verified July 14, 2026.

Catalog photo
Real product photography — no AI-generated or placeholder imagery.

Editorial take

The Arc'teryx Gamma Pant, a staple in their softshell lineup, offers a compelling balance of protection, breathability, and range of motion for a variety of outdoor pursuits. Constructed from Fortius softshell fabric, these pants feel light on the skin but stand up surprisingly well to wind and light precipitation. The fabric's stretch is immediately noticeable, making them incredibly comfortable for dynamic movements like scrambling or high-stepping on a trail. We’ve worn these on everything from shoulder-season backpacking trips to alpine approaches, and they consistently impress with their versatility.

Durability has proven to be a strong suit. Despite numerous encounters with abrasive rock and brush, the Fortius fabric shows minimal signs of wear and tear, reinforcing Arc'teryx's reputation for robust construction. The DWR treatment holds up for a good while, shedding light rain and mist effectively, though it's important to remember these are softshells, not hardshells; sustained downpours will eventually soak through. Packability is decent for a pant with this level of protection, rolling up small enough to stash in a daypack without significant bulk.

While the Gamma Pant excels in active use across varied conditions, its price point is on the higher end of the softshell pant spectrum. For those who prioritize unrestricted movement, weather resistance, and long-term durability in a single garment, the investment is justified. It strikes a sweet spot for hikers, climbers, and backpackers looking for a reliable workhorse pant that handles everything from cool morning ascents to breezy ridgelines without needing to swap layers.

Best for

  • Hiking and backpacking
  • Alpine climbing approaches
  • Cool weather trail running
  • Light mountaineering

Not ideal for

  • Not fully waterproof in heavy rain
  • Premium price point
  • May be too warm for hot summer days
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Verified specifications

Materials
Fortius softshell
Country of manufacture
🇨🇦 Canada
Key features
  • Fortius softshell fabric
  • Articulated knees and gusseted crotch
  • Integrated adjustable webbing belt
  • DWR (Durable Water Repellent) finish
  • Two zippered hand pockets, one zippered thigh pocket

Warranty and repair information: contact Arc'teryx directly for the most current terms. Arc'teryx support

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