Callaway Women's Golf Performance Short Sleeve Placed Print Polo Shirt 95% Polyester/5% Spandex Imported Opti-Dri: transfers moisture away from the body to aid in evaporation OptiShield 50: creates a layer of protection from the sun's harmful rays OptiStretch: fabric features interwoven layers of spandex to ensure maximum range of motion so the garment moves with the golf swing Machine Wash Cold, Tumble Dry