Opti-Dri technology transfers moisture away from the body to keep you cool and dry. Opti-Shield technology creates a layer of UPF 50 protection from the suns harmful rays. Opti-Stretch fabric features interwoven layers of spandex to ensure maximum range of motion so the garment moves either with your golf swing or at work. Rib knit collar. 3-button placket with Callaway embossed buttons. Double needle hemmed bottom with side vents. Heat seal label provides tag-free comfort. Tonal embroidered Chevron inside placket. Embossed Chevron on back neck. Contrast embroidered Callaway logo on right sleeve