Ultrawashable kingsize combination duvet made from a 4.5 tog & a 9 tog duvet which fasten together for a 13.5 tog winter duvet. This microfibre polyester duvet provides superb softness, warmth & 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).