The KILOWATT JKT II is made of WR-VANTAGE 2.5-layer Nylon - waterproof, breathable rain jacket for seriously wet weather. It keeps you dry through steady showers and they do it with breathability. The centre-front YKK QuickFree® is new design that has both Smart Insertion & Quick Release function in one zipper, and the zipper can be released by simply pulling apart the garment from both sides of the zipper