The Arc’teryx Beta Pant (Men’s) is a three-layer waterproof shell pant designed to keep you dry and protected in wet, windy mountain conditions. Built around a PFAS-free GORE-TEX® ePE membrane with a GORE C-KNIT™ backer, these pants combine waterproof and windproof performance with breathability and a softer, quieter interior feel. The design aims to balance durability with lightweight versatility for activities such as hiking, scrambling, backcountry travel, and alpine approaches in variable weather. Functionality is central to the Beta Pant’s design. A simplified waist closure and integrated belt system provide a secure, adjustable fit suitable for layering over insulating layers or softshell pants. The pants feature ¾-length side zippers that make getting on and off over boots easy and offer additional ventilation when needed. Articulated patterning and a regular fit support a full range of motion, whether you’re ascending a steep trail or standing still in a storm. Weather protection is delivered without sacrificing mobility. The GORE-TEX® ePE construction actively manages moisture by allowing vapor to escape while rejecting rain and snow at the surface, making these pants dependable in sustained wet conditions. Laminated instep reinforcements help guard against abrasion from boots or crampons, extending the lifespan of the pants under heavy use. The Beta Pant offers a pared-down feature set that emphasizes performance over frills, which keeps weight and bulk down while maintaining strong environmental protection. These qualities make it suitable not only for traditional mountain pursuits but also for long-distance treks and travel where unpredictable weather can be encountered.

Key Specifications