Arc'teryx  Alpha SL Pant - Men's

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Sizing chart
Runs Small
True to size
Runs Large

Past season

Ultra-Light & Packable.

The Alpha SL is a light and compactible GORE-TEX® shell pant, designed for hiking and climbing in high altitude conditions that shift in a lightning bolt. This pant comes in a regular fit with e3D patterning that helps to provide a freedom of movement. A trim lower leg reduces snags on things like crampons or bicycle spokes. The super packable Alpha SL pant comes equipped with full length separating side zips for easy entries and rapid ventilation. There are dual low-profile waist adjusters. The lower hems feature cord adjustability along with bootlace hooks.

  • N40r GORE-TEX® Paclite® 
  • N150p-X GORE-TEX® reinforcements
  • Regular fit + e3D patterning
  • Trim-lower leg 
  • Full length side zips
  • Low profile waist adjusters
  • Hem cord adjustment, bootlace hook
  • Reinforced instep patch


  • [pant] N40r GORE-TEX® Paclite®
  • [reinforcements] N150p-X GORE-TEX® Paclite®
Water Resistance
  • Yes, GORE-TEX®
Wind Resistance
  • Yes
  • Regular fit with e3D patterning
  • 1 zippered thigh pocket with flap
  • Regular: 365 g
  • Inseam
  • Short (72cm / 28"")
  • Regular (77cm / 30"")
  • Tall (85cm / 33 in)
Recommended Use

  • Climbing, Ice Climbing, Expeditions, Ski-Touring, Backcountry Snowboarding, Cross Country Skiing, Winter Activities

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