96% Polyester . 4% Spandex. Three-Button Placket. Self Collar. Callaway Chevron TPU 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-Soft: designed for ultimate comfort and performance. Opti-Shield: creates a layer of protection from the sun's harmful rays - UPF 40. Machine Washable. Imported