100% Nylon. Two-Way Full Zip. Mock Collar. Two Front Zipper Pockets & Chest Pocket. Reflective Callaway Tour logo on left sleeve. 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. Machine Washable. Imported