Shell jacket from Arc'teryx. The Beta AR Jacket is a versatile shell jacket offering packable, breathable, and highly durable waterproof protection for alpine environments and outdoor adventures. Constructed with GORE-TEX PRO Most Rugged Technology, it ensures exceptional durability in the toughest conditions. The jacket has a regular fit and features a helmet-compatible DropHood™ with an internal collar for added protection and an integrated RECCO® reflector to enhance safety during emergencies.