Wrap your feet up warm with these Pair of Winter USB Heated Shoe Insoles Choose from EU 35-39 (UK 2.5-6) or EU 40-44 (UK 6.5-9.5) sizes These heated insoles are perfect for keeping your feet warm in the winter months Insoles can be easily trimmed to size with the cutting guides to fit your perfectly Comes with a USB cable so you can plug into power banks and other ports Measures 4mm in thickness Made from waterproof materials so they can be safely washed Keep it cosy with a Pair of Winter USB Heated Shoe Insoles for only 5.99 pounds