1Pair Electric Heated Insoles USB Foot Warmer

In winter or chilly days, feet always get cold, followed by slow blood circulation, decreased resistance and difficulty of falling sleep. Our electric thermal shoe insoles can be a great helper for these troubles. It can reach the comfortable constant temperature of human body within 3 minutes. Safe and easy to use with included USB cables and adapter. Unisex and cutting design makes it suitable for men and women, suitable women shoe size US 5 to men shoe size US 10.