The Men's Arc'teryx Beta SL Jacket is a light and packable shell for exploring in the mountains. The trail adventure goes on, even when it's raining, snowing, or wind blowing, but look no further than GORE-TEX ePE membrane and C-KNIT backer technology for waterproof, windproof, breathable protection. The StormHood is helmet-compatible, pit zippers offer ventilation without having to open the front zip, and the RECCO reflector aids searchers in avalanche situations. Stay dry, hike longer, and tuck personal essentials within the zippered hand pockets and internal chest pocket for quick access.