Product description fj hydro lite in a half zip short sleeve rain shirt 100 polyester material content the lightest rainwear material ever produced by fj 25 layer fabric this advanced material is stretchable waterproof breathable and highly packable seam sealed providing 100 waterproof and breathable properties tour proven put to the test by the worlds best players playing on the worlds biggest tours 20 000mm of water column pressure this waterproof system provides maximum protect