Features: High Elasticity: These electric heating socks achieve high tensile force from the length of the sole of the foot the width of the toe the length of the sock and the width of the sock and are no longer afraid of the size of the feet. tall short fat or thin men and women can wear them. Simple to Clean: These women heated socks are not afraid of washing and will last as new. Remove the battery and use a waterproof design for the power interface which is sealed and waterproof effectively preventing liquid from entering the heating area. Snug Wearing: This heated sock adopts a seamless design a one-piece design fits the foot shape and is comfortable to wear locks the warmth firmly. Applicable Occasions: Men heated docks have wide applications which can be used for cycling skiing riding biking ice fishing hunting running hiking walking or working outdoors in cold climates. Meaningful Gift: These heating docks are suitable for cold weather engineering or winter outdoor sports and can be given as Christmas gifts to relatives and friends to express your care and love for them. Specification: Material: high elastic imitation mink velvet yarn Size: The stretched length of the sock is about 40cm/15.75inch and the stretched length of the sole is about 32cm/12.6inch Temperature: 45 Power: 3W (single) Input: 3.7V1A Weight: about 170g includes: 1 pairElectric Heating Socks Or 1 pair Electric Heating Socks+ 2*battery boxes