Patagonia M10 Storm Jacket Men'sFollowing the axiom "The more you know, the less you need," this movement first, 3 layer alpine shell is built for moving fast and light, and climbing through any weather. And, it's made without perfluorinated chemicals (PFCs PFAS). Made in a Fair Trade Certified factory. Material H2No Performance Standard shell: 3 layer, 2. 6 oz 30 denier ECONYL 100% recycled nylon ripstop face with a 7 denier knit backer and a DWR (durable water repellent) finish.