Callaway Womens Golf Performance Short sleeve Dot and Stripe Print Polo Shirt 95% Polyester/5% Spandex Imported Opti-Dri: Transfers moisture away from the body to aid in evaporation Opti-Shield 50: creates a layer of protection from the sun's harmful rays Opti-Stretch: 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