95% Polyester . 5% Spandex. Big & Tall. 1.4 Zip. Mock Collar. Opti-Therm: insulated fabric designed to withstand the cold and provide a layer of thermal comfort. Opti-Stretch: interwoven layers of spandex 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. Machine Washable. Imported