The Arc'teryx Beta Jacket - Men's is a waterproof shell for technical mountain trails. The GORE-TEX fabric is waterproof, windproof, and breathable for wet, windy, and snowy conditions. The lightweight jacket is incredibly durable to withstand the outdoors, while a GORE C-KNIT backer provides interior comfort. The regular fit jacket has been articulated for unrestricted movement and the low-profile StormHood is adjustable to keep precipitation off the face while maintaining peripheral vision.