Don't be afraid to weather the cold with the Volt Resistance Indoor/Outdoor Heated Slipper - Gray in tow. These clever unisex slippers use rechargeable batteries, Thinsulate insulation, fleece lining, and an ankle cinch cord to trap heat around your feet. Their durable rubber outsole allows you to wear them outside, or keep them on indoors and enjoy their memory foam footbed while lounging around the house. Great for men or women, these slippers come with a wireless remote control to adjust the heat setting between four available levels so you can stay warm and comfortable all winter long.Volt Slipper Size GuideSmall = Women's 4.5 - 6Medium = Women's 6.5 - 8 / Men's 6 - 7.5Large = Women's 8.5 - 10 / Men's 8 - 9.5X-Large = Women's 10.5 - 12 / Men's 10 - 11.5XX-Large = Men's 12 - 13About VoltWith a mission to combat the perpetual discomfort of cold feet, Volt has developed a line of innovative products to help those who suffer from consistently freezing feet. Developed to help those who get cold feet even in heated homes, the Volt heated slippers are lovingly designed, expertly crafted solutions to an age-old problem. Size: Large. Age Group: Adult.