This water-repellent wind shirt is a no-brainer for runs in uncertain mountain weather It's fast drying, ultralightweight and breathable, with a stretch-knit hood and lower sleeves, and a DWR (durable water repellent) finish that's made without PFCs (perfluorinated chemicals)Packs into its own pocket for easy stowability Made in a Fair Trade CertifiedTM factory. Our Patagonia Men's Airshed Pro Pullover is an ultralightweight, breathable, water-repellent windshirt for trail runs in uncertain mountain weather. Features. Stretchy, Ultralightweight 100% Recycled Polyester Shell: Ultralightweight body fabric is made of 100% recycled polyester stretch-woven ripstop with a DWR (durable water repellent) finish that's made without PFCs (perfluorinated chemicals). Integrated Stuffsack: Left-chest pocket converts to a stuffsack for easy packing and stowability when needed. Colour: orange