Opti-Dri technology transfers moisture away from the body to keep you cool and dry. UV Repel technology keeps skin safe from the sun's harmful rays. UPF 15+. Stretch fabric moves with you to increase your range of motion. Self fabric collar. 3-button placket with Callaway embossed buttons. Double needle hemmed bottom with side vents. Double needle hemmed sleeve. Heat seal label provides tag-free comfort. Contrast heat transfer Chevron logo on right sleeve.