Filling: 85% duck feather. 15% duck down. 10.5 and 4.5 tog. 700 + 300 GSM. Cover: 233 thread count. 100% microfiber down-proof. Adaptable: Each duvet has a 10.5 tog and a 4.5 tog, which means you can remove either one to suit to your desired temperature! Care: Machine washable at 40'. Can be tumble dried. Do NOT bleach, dry clean or iron. Ideal: For those who want to improve the quality of their sleep! Sizes: Single, double, king and super king. 15 Tog Duck Feather And Down Duvet | Living Social