FootJoy Men's Hydrolite Short Sleeve Rain Shirt FootJoy warrants that this piece of outerwear will be 100% waterproof in normal use for two years (U.S. Warranty). This performance fabric offers extreme comfort and allows complete range of motion during the golf swing. The HydroLite System is a 100% waterproof shell. Combining lightweight fabrics with a bonded liner, makes this DryJoys piece the lightest garment ever produced by FJ. A waterproof front zipper allows for easy-on and easy-off wear, while protecting you from the elements. A scorecard pocket makes for easy storage and retrieval.