Ultrawashable 10.5 tog microfibre polyester double duvet provides superb softness, warmth and lightness wash after wash. With a 100% cotton percale cover, it can be repeatedly washed at 60° in a domestic washing machine, the temperature that kills dust mites (ideal for anyone with dust or feather allergies). 10.5 Tog is the perfect warmth for Autumn and Spring, or during the winter months for those with warmer houses.