Go to Your orders to start the return.Print your label and return authorisation.Send the item back to us.Soft AND Warm: The heated shoes material is composed of very thick woolen yarn vamp in combination with fill cotton and very suitable for keeping warm indoors. .Safe and Reliable: Quick heating and high temperature. The highest temperature can reach 150 Fahrenheit. With the working voltage of 5 V, saftety to use. And you can plug into the pc and notbook usb port,power bank.Or USB adaptor(such as cellphone adaptor). .Closure: Slip-On .Heel Height: 0.5 centimetres .Waterproof and non-slip at bottom: You can wear the plush warm slippers and go into the washroom without changing shoes. In the outdoor dry environment, portable power source can be adopted as an adapter for power supply. .Light and Comfortable: The weight of each shoe: 140 G. The soft vamp and the thick warm-keeping filling cotton enables shoes to be very elastic, The heating shoes can make you no longer fear of cold and are also fine gifts for friends or families. .Size: L31XW4.8CM/L12.2incXW1.89inch.Most fits UK size 4-8suitable for feet with different sizes .