Heated Insoles: Heated insoles keep your feet warm in cold weather and prevent frostbite. USB heated insoles are made of high-quality fleece material, which is softer and warmer, keeping your feet warm even when it is cold outside. When your feet are fully heated, the heat is evenly distributed from the heel to the toes, which warms your feet and optimizes blood circulation in your feet.

[3-level temperature control]: USB heated insoles with temperature control, the temperature can be adjusted to 40/45/50°C, 3 heating temperatures.

USB heating: USB heated insoles are powered by USB, no battery is needed, and you don't have to worry about the problem of battery drain, because it is a USB interface, it can be used to power the electric heated insoles, such as power bank, car charger, direct charger, computer, etc.

Free Size Adjustment: Don't worry about the fit, our USB heated insole can be cut and adjusted to fit your shoes.

Fits shoe size 35-40.

Note: Electric heated insoles only heat up when connected to USB, no heating function when unplugged.