Regular Fit Size: Adult, also fits Juniors and Teens Lightweight Single-layer Comfort Shell Technology UPF 50+ Sun Protection - Blocks 97% of UV Rays & moisture-wicking 92% Polyester/8% Spandex Comfort, performance, and coverage-three things you can't do without on the mountain. Our Comfort Shell fabric helps you stay warm and comfortable while on the move in cold weather, and the versatile MaxClava design delivers protection from the elements.