Got performance? This shirt does. Inspired by Trail Creek - the gatweay to Teton Pass' year-round recreation - this shirt is designed to hike, bike, fish, explore and more. UPF 40+ (98% UV blockage). Vented back. Flip-n-snap collar for added sun protection and no flapping in wind. Roll-tab sleeves stay in place. Sunglass chamois sewn into waist hem. 100% poly. Relaxed fit.