A traditional hiking and backpacking shirt that's highly wrinkle resistant, the Mountain Hardwear Canyon Men's Short Sleeve Shirt looks like a simple, classic hiking shirt, but the technical performance of the Canyon has been dialed up. The nylon poly blend fabric is light and durable, with outstanding moisture management. Stitched in mesh venting in the back yoke provides extra cooling, while UPF 30 keeps the sun at bay. Desert Cloth 70% nylon30% polyester is light, durable and wrinkle resistant. Outstanding moisture management. UPF 30 fabric blocks out harmful rays. Understated, stitched in mesh venting under the arms and in the back yoke to keep you cool. Button front closure. Easy care, wash and wear. Relaxed fit. Avg. wt. 7 oz. Avg. length 30.