The Optimal Thermal Comfort Slippers

These are the heated slippers with a built-in thermostat that automatically adjusts the temperature for ideal warmth. Eliminating the need to fiddle with a controller, the self-regulating, hands-free system responds to the temperature inside the slipper, delivering optimal warmth to cold feet without toasting the tootsies. Each matchbook-size 3.7 volt battery pack slips into a zippered pocket inside the ankle and soft padding covers the insole, making the heating system virtually undetectable underfoot. The slippers have durable polyester suede uppers and a fleece-like lining that extends above the ankle. A rugged, nonslip outsole allows them to be worn indoors or outdoors. Batteries provide up to four hours of warmth on a full charge from the dual-charging AC adapter. Machine wash. Brown. Sizes M (men’s 8-8 1/2, women’s 9-9 1/2), L (men’s 9-9 1/2, women’s 10-9 1/2), XL (men’s 10-10 1/2, women’s 11-11 1/2).