306 g/m(2)/9 Oz. lyd WindWall, 100% polyester with DWR finish (solid). 316 g/m(2)/9.2 oz lyd WindWall, 100% polyester with DWR finish (heather). Highly wind-resistant with wind permeability at less than 10 CFM (0 CFM is 100% windproof). Brushed micro-gridded fleece interior. Reverse-coil zipper at centre front and hand pockets. Drawcord and toggles at hem. Durable water repellent: DWR is applied to the face of the fabric to provide the first line of defense against wet weather.