Set contains 4.5 tog summer duvet and 10.5 tog spring/autumn duvet. Duvets can be used together in a duvet cover to make a 15 tog winter duvet. Kingsize includes 2 pillows. 100% polyester hollowfibre filling. Quality polycotton covers. Size of pillows 71 x 46cm. Machine washable at 40°C. Not suitable for tumble drying. Non allergenic.