A 420D nylon shell with waterproof coating. 100% polyfill fiber thermal insulation. Programmed elastic waistband to retain shape. Collar lined with fleece for comfort and warmth. Zippered chest pocket and inside wallet pocket. Zippered hand pockets lined with flannel. Underarm vents. Cuffs have hook-and-loop closure for easy adjustment. Reflective piping. Exclusive Yamaha embroidered logos.Note: See chart for size information