Arc'teryx Gamma SL Mens Pant 2026

Lightweight, highly versatile softshell pant made from recycled materials.

The Gamma SL Pant was previously the Gamma Lightweight Pant.

Refined design, focused performance, made to move – our lightest Gamma is an all-mountain pant for summer adventure. The Fortius™ 1.0 softshell is made with 43% recycled content and delivers durable performance with the freedom of stretch. An adjustable low-profile waistbelt rides comfortably under a hipbelt or harness, and zippered hand pockets and a thigh pocket secure your smartphone and small essentials. Articulation is built in for added mobility, and eyelets at the hem accommodate shock cord to hold the cuffs over your boots.

Features & Specs

Technical features

• Breathable
• Lightweight
• Durable
• Wind resistant
• Versatile
• Water repellent

Construction

• Fortius™ 1.0 softshell enables stretch and air flow automatically releasing excess heat

Cuff & Sleeves configuration

• Eyelets at hem for shock cord attachments

Design & Fit

• Tapered legs for maximum mobility

• Garment Inseam: Size 4-S (Short) is 28"/72cm, Size 4-R (Regular) is 30"/77cm, Size 4-T (Tall) is 33"/84cm — Inseam varies by size

Fabric treatment

• FC0-DWR (Durable Water Repellent) finish repels moisture

Patterning

• Articulated patterning for unrestricted mobility

Pocket configuration

• Two hand pockets with zippers
• Thigh pocket with zip

Sustainability

• Contains materials that meet the bluesign® criteria
• Body - bluesign® approved material, recycled content
• Lining - bluesign® approved material
• PFAS (Per- and polyfluoroalkyl substances) Compliant

UPF rating

• 40+

Waist & Belt configuration

• Adjustable waistbelt fits comfortably under harnesses and backpacks