Product Video UV PROTECTION! The Cascade Trail looks basic at first glance but, have another gander. A vented back yoke and mesh interior create what the Unicorn Farm calls an "installed cooling system." The features don't end there and are KAVU to the kore - party pocket, front chest pocket with front yoke placket, wicking, and UV protection. Last but certainly not least, is the planet approved and outdoor ready fabric made from certified recycled stretch polyester micro rip stop. Say that five times fast. Casual fit, short sleeve button up shirt, stand collar, two chest flap pockets with button closure, 25% certified recycled polyester buttons with satin finish, logo snap at hidden pocket at bottom hem, mesh lined onseam back zip pocket, mesh lined vented back yoke panel. Fabric: 4.5oz 55% polyester, 35% certified recycled polyester, 10% spandex micro stretch rip stop - UPF 30+, wicking quick dry Length: XS/29.5", S/30", M/30.5", L/31", XL/31.5", XXL/32"