Minimalist design, maximum function. The Gamma Lightweight Crew Neck Pullover focuses on the essentials – weather protection, sun protection, freedom of movement, and durability. It’s made for hiking but has a versatile design that makes it a go-to for a range of mountain adventures. its Fortius™ 1.0 material is water repellent and provides UPF 50 sun protection. The regular fit layers easily, and articulation and stretch combine for outstanding mobility on the trail.