These duvets are completely dust mite proof. The covers are a white dust mite proof Oeko-tex standard 100 cotton, the filling is boil washable new sterilised goose/duck feather and down (85% feathers to 15% down).
The cassette construction distributes the feathers throughout the duvet. The feathers have been treated to make them washable. The duvets have a tog guide of 12.5 and are warm and cosy with the wrapping quality of feathers without the dust and allergy problems associated with them. Wash at 60°C in a commercial washing machine. Tumble dry.
