Heated socks made of stretchy, soft and skin-friendly material that prevents both cold and localized tension. The heat area is exactly where you start to freeze, namely at the toes (upper and lower side). No more freezing in extreme cold. Up to 5 hours of pleasant warmth. 3 temperature levels (34°C, 39°C, 44°C). Incl. lithium-polymer high-performance battery and charger. The battery pouches can be used flexibly by means of a cable connection and according to your wishes on the lower leg, on the thigh or with an extension cable in the trouser pocket or jacket pocket. This also makes cleaning and changing much easier. Suitable for washing machine. Colour: black.