ChikaMika Unisex Plush Foot Warmers Electric Heating Warm Shoes Removable Plug Electric Heating Cotton Slippers Foot Treasure DC 12 Volts (Yellow/Black) 1. Material: Plush 2.Electric under safe voltage. 3.Three gear thermostat, two grade of timing, auto temperature control. 4.Unisex for man and women, one size, max for 43M 5.Soft and high quality plush, sachet inner good smell.