Thermoregulating Socks And Foot Warmers USB Heating

Product information:

Fabric Name: Cotton
Style: all-match
Main fabric composition: cotton
Function: breathable, invisible, sweat-absorbent, deodorant, anti-friction
Color: black, gray
Specifications: Standard version (2200Mah), upgraded version (4500Mah)

Packing list:

A pair of socks*1Charging cable*1Battery*1