Opti-Dri technology transfers moisture away from the body to keep you cool and dry;Ventilated fabric allows air to flow freely through the fabric to keep you comfortable;Sun protection fabric Self fabric collar;3-button placket with Callaway embossed buttons;Double needle hemmed bottom with side vents;Heat seal label provides tag-free comfort;Tone-On-Tone embroidered Callaway TOUR logo on right sleeve;Mens Sizes S-4XL