This sleeping bag is made of 100% natural, from the packaging to the last button. Thanks to our patented, innovative insulation made of RDS-certified down and wool, DownWool, we achieve the best sleeping climate. Down is light and has excellent insulation properties. Wool is insensitive to moisture and regulates the sleeping climate. In DownWool we combine the good properties of down and wool. All individual parts on the sleeping bag are OEKOTEX certified. At the end of its long life, the sleeping bag can be completely composted.