This product is suitable for winter heating protection, keeping coldness and frostbites from your feet.Applicable to various shoe types.Wireless remote control, maximize comfort.Make your foot more comfortable and warm.No matter where you go, you can stay warm, suitable for skiing， Outdoor sports, other sports, camping, housework, hunting, hiking, fishing, etc. Specifications:Material: Eva foamsize: EUR 35-46Suit: Outdoor sports, skiing, running, hiking and so on.Temperature Range: 39-62 CelsiusTemperature Switch: H, M, L three modesHeating element: Carbon fiber heating padWeight: 460gPackage Includes:1 Pair X Heated InsolesNotes: 1. Only sell main products, not other products.2. Since manual measurement is required, please leave a space of 1-3 cm.3. Due to screen differences, the color may be slightly different from your expected color, please allow.4. This product can be washed with water, remember to dry and heat the insole before using it.5. The elderly and children need to use it under supervision.Remind:After receiving the packaging, please check the packaging and the product carefully. If the received item is defective or has any questions, please contact us via email to resolve the problem. We will reply as soon as possible and do our best to meet your needs!Breathable and comfortable, more flexible for sports walking.