FootJoy 2014 Hydrolite 1/4 Zip Rain Shirt Mens Waterproof Golf Jacket Seam Sealed: Providing 100% waterproof and breathable properties. Tour Proven: Put to the test by the world's best players playing on the world's biggest tours. Three-Year Limited Waterproof Warranty Under normal use. 20,000mm of Water Column Pressure: This waterproof system provides maximum protection in the toughest of conditions. The lightest rainwear material ever produced by FJ. 2.5 - Layer Fabric This advanced material is stretchable, waterproof, breathable and highly packable.