Graphene heating socks is an efficient heating product based on our techinique of graphene.Equipped with ultra-thin graphene heating film (0.3mm), it heats up instantly upon power-on. With three temperature settings (38°C/45°C/52°C), it precisely meets your needs. Far-infrared heat waves directly reach the acupoints on the soles of your feet, driving away the cold in just 5 minutes. The warmth spreads from your feet throughout your body.The intelligent chip dynamically monitors the temperature of the feet, and combines with the honeycomb air-ventilated grooves for uniform heat dissipation. This effectively eliminates the problems of local overheating of traditional heating pads and icy coldness in the toes. Even in an extremely cold environment of -20°C, both feet remain warm and dry.