1. Material: EVA + carbon fiber heating wire 2. Carbon fiber heating wire, whole foot heating 3. Warm electric heating insole, soft and comfortable 4. Size line design, cut at will 5. 3 temperature control, USB interface, a variety of charging methods 6. Washable and dryable for repeated use, suitable for a variety of footwear 7. Weight: about 122.3g 8. Size: about 28.2 x 9.3 x 0.5cm
