The 'Super light down duvet' series maximizes characteristics of warmth and lightness in a down duvet. By reducing the weight of fabric which accounts for 70% of the duvet, the weight of the duvet could be reduced by 50%. The outer fabric is waterproof for protection of the down feathers against dirt and stains. It is also completely machine washable. It is available in two types: home type which puts great emphasis on warmth (down 900g); and a portable type (down 450g), which can be folded compactly for travel and use during outdoor activities.