Description 100% brand new and high-quality made. Heated insoles adopt new heating technology, made of soft and comfortable stretch material, with good cushioning and extremely light, the heater is comfortable with USB interface is used for heating via the USB cable, large heating surface and temperature can reach up to 42 °C/108 ℉. Insoles can be cut into your size need, it is adjustable to your shoe size, the shoe size range is given on the insoles for your DIY convenience, heated insoles is 5 mm thick, you don't have to worry about the size, there are lines marked out on the insoles, very easy to trim. .
eBay