Inspired by the demands of big wall climbing, the lightweight Matrix™single weave fabric with two way stretch and DWR offers complete freedom of movement and protection from the elements. UPF 50+ protects from the sun, while the deep venting YKK® front zip with chin guard and lycra bound cuffs offer adaptability and shelter from the wind as conditions vary. The Pull-On packs down small into the YKK® zipped chest pocket which doubles as integrated stuff sack. This can then be clipped to a harness, so its always there when you need it.