The longest Beta’s versatility gives you the freedom to discover new places and pursue different experiences. Arc'teryx's waterproof, windproof GORE-TEX fabric with GORE C-KNIT™ backer technology delivers durable protection with enhanced comfort and breathability. A PFCec-free DWR finish adds water resistance without harmful chemicals. The length extends coverage and rides comfortably under a pack, pit zippers ventilate, and the adjustable StormHood™ delivers coverage without impacting peripheral vision.