- Very warm - Waterproof - Bionic Finish - free of fluorocarbons Lovely wind - and waterproof women's bags with nice warm lining. The mittens are one size. They are coated with Bionic Finish, so that they are completely free of harmful fluorocarbons. Match them with your Danefæ winter coat. Material: 62% cotton and 38% nylon The material is Oeko-tex certified Responsible production is a matter of course. We only work with BSCI certified manufacturers that we visit annually to make sure we can vouch for the working conditions. In addition to complying with all applicable European and Danish legislation, our products also follow a very special and stricter Danefæ regulatory framework for the use of chemistry, ensuring durability and guarantee of beauty wash after washing.