Fast-moving missions in unpredictable weather call for a shell that won’t weigh you down or let you down. The Beta SL is the lightest jacket in the Beta line, designed for high-output days when space and grams matter. It delivers waterproof and windproof protection with a breathable feel, thanks to Arc’teryx’s next-gen GORE-TEX ePE membrane. Whether you’re climbing into sudden mountain squalls or hiking through shoulder-season storms, it keeps the elements out and packs down small when the skies clear.
- Lightweight 40-denier face fabric balances packability with trail-tested durability
- GORE-TEX ePE membrane blocks wind and rain while reducing environmental impact
- Soft GORE C-KNIT™ backer adds comfort and breathability under layers or harness
- 1.6mm seam allowances shave weight and bulk without compromising performance
- Articulated patterning and underarm gussets let you reach, scramble, and climb freely
- Pit zips release heat fast during high-output ascents or sudden temperature swings
- Helmet-compatible StormHood™ adjusts easily and keeps rain out of your face
- Brushed microsuede chin guard adds next-to-skin comfort in cold, wet weather
- Water-resistant zippers keep moisture from sneaking into critical zones
- High-volume hand pockets sit above a harness or hipbelt for easy access
- Internal chest pocket stashes a phone, map, or snack within easy reach
- Adjustable cuffs seal out drafts and slide easily over gloves
- Drop hem with cordlock adjusters adds coverage and blocks wind
- Integrated RECCO® reflector aids search and rescue in remote terrain
