Made with the finest Siberian Goose Down which is wonderfully light and soft. The large lofty clusters of down have a naturally airy and open structure and provide the perfect level of insulation for your choice of tog. Natural fill duvets are breathable which helps keep your body heat a constant temperature for added comfort and a perfect nights' sleep.  90% Siberian Goose Down 10% Goose Feather 100% Cotton downproof 300tc  Cassette stitched for even fill distribution Double stitched piped edge Machine washable 40° - Professional laundering recommended Available as 4.5 Tog, 10.5 Tog, 13.5 Tog and All seasons (4.5 + 9 Tog) Size: Single 135cm x 190cm Double 200cm x 200cm King     230cm x 220cm Superking 260cm x 220cm Care advice: When new air for 24hrs before use to ensure maximum loft . Regularly shake to let air into your duvet Designed to be laundered at 40°c, line dry and then finish on a low heat 30°c tumble dryer to make sure it is 100% dry before use. Failing to fully dry can result in clumping and compromise the performance of your duvet