Mens Under Armour Golf Storm Waterproof Rain Pant. Under Armour have produced a fully seam sealed waterproof trouser constructed using Storm fabric that is 100% waterproof to 10,000mm. A 2.5 layer bonded fabric with a durable smooth exterior and windproof construction means that you are fully protected from the elements. The trouser is detailed with two zippered hands pockets, reverse entry back pocket, adjustable waistband with elastic tabs and snap closure and 14″ leg zippers. 100% Polyester. 1 year limited waterproof warranty.