Wind & waterproof with heat-sealed seams for weather protection. Lined with grey mesh in body and front yoke and underarm vents to allow for air-flow circulation. 2-way zipper for freedom of movement and full length windflap for protection from the elements. 3M™ Reflective trims across front & back provide high visibility. 100% Polyester Polyurethane (3.98 oz./yd2).