- 【Scientific Heat Preservation】 According to the characteristics of the human blood flow, foot warmer heating up the soles of the feet, which promotes blood circulation, thereby increasing the temperature of your whole body, so that you are no longer afraid of the cold winter. Whether you are hiking, hunting or on a ski trip, these insoles protect your feet from cold winter winds.
- 【Easy to Use】 Wireless, intuitive remote control for maximised operational comfort. Each pair of heating insoles is equipped with a temperature remote control and adopts LED digital display, so the temperature can be adjusted intuitively on the remote control according to your needs (104-150℉).
- 【Safe and Comfort】Environmentally friendly material. Excellent waterproof PU material with built-in PC case of battery. Each insole equipped with high density, safe lithium-polymer battery. The PU material is soft and comfortable, and it will not deform even if withstand 440 pounds（ 200 KG）. It can be washed in water.
- 【Temperature Adjustment】 The heating insoles have a built-in 3.7V rechargeable batteries. There is different estimated heating time for different heated levels. High (III): 150F – 3.5-4.5 Hours Medium (II): 130F – 5-6 Hours Low (I): 110F – 6.5-7Hours.
- 【Cut To Fit Size】 It can be adjusted to your shoe size, trim the soles for the perfect fit following size guide.( We suggest to wear this heated insoles with loose shoes, it will be more comfortable.) S: 35-38 M: 39-42 L: 43-46 (can be cut)
