94% Polyester . 6% Spandex. Two-Button Placket. Ribbed Collar. Callaway Tour logo on Left Sleeve. Opti-Dri: transfers moisture away from the body to aid in evaporation. Opti-Stretch: interwoven layers of spandex to ensure maximum range of motion so the garment moves with the golf swing. Opti-Shield: creates a layer of protection from the sun's harmful rays - UPF 50. Opti-Soft: designed for ultimate comfort and performance. Machine Washable. Imported