The Colter Bay Stretch Shirt is a lightweight moisture-wicking performance polyester short-sleeve shirt with built-in sun protection engineered for an active lifestyle. The packable button-front shirt features offset shoulder seams to minimize chafing, a button closure with a shirttail hem. Polyester quick-dry and moisture-wicking novelty textured shirt Nylon blend for durability Packable, breathable and lightweight Ultraviolet Protection Factor (UPF) 30 protection from UV rays Double needle flat-felled seams for added durability Offset shoulder seams to increase comfort and minimize chafing Button front single chest pocket with button closure Shirttail hem 61% Polyester, 39% Nylon Plain Weave | 2.6 oz/sq. yd; 90 GSM