Arc'teryx's ultralight Beta SL weighs just 340g but delivers bomber GORE-TEX protection. Pack it anywhere, trust it everywhere—from sudden storms to all-day drizzles.
When every gram matters and mountain weather threatens to derail your summit bid, the Arc'teryx Beta SL Jacket delivers uncompromising GORE-TEX protection in an ultralight 340g package that disappears into your pack. This technical climbing shell combines advanced GORE-TEX ePE membrane with C-KNIT backer technology for exceptional waterproof performance, while articulated patterning ensures you can reach for holds, scramble across exposed ridges, and navigate technical terrain without restriction. The helmet-compatible StormHood maintains full peripheral vision during challenging ascents, and strategic pit zippers let you dump heat fast when the approach gets steep. Whether you're facing sudden alpine storms or committing to multi-day backcountry adventures where pack weight is critical, this packable mountaineering jacket proves that going ultralight doesn't mean compromising on weather protection or technical performance.
Features
GORE-TEX ePE membrane with C-KNIT backer delivers exceptional waterproof protection
Helmet-compatible StormHood maintains full peripheral vision
Strategic pit zippers enable rapid temperature regulation during high-intensity activities
Articulated patterning ensures unrestricted movement for climbing and scrambling
Packable design compresses small for efficient backpack storage
Integrated RECCO reflector enhances rescue detectability in emergency situations
PFC-free construction with bio-based nylon face fabric reduces environmental impact
Adjustable Velcro cuffs and multiple pockets provide convenience and customizable fit
Specification
Value
Weight
340g (12.0 oz)
Fit
Fitted
Centre Back Length
75cm
Materials
Face Fabric: 3L 40dx70d plain weave recycled nylon (bio-based) | Membrane: GORE-TEX ePE with C-KNIT backer | Finish: FC0 DWR
