Available only from Hammacher Schlemmer, these are the soothing insulated slide slippers with three heat settings to keep feet toasty on frosty evenings. After sliding your feet into the cozy fleece interior, the interior temperature can be set (by a button on each slipper) to low, medium, or high to bathe the toes in luxurious warmth. A timer automatically shuts off the heating elements after 45 minutes. The anti-slip soles assure a good grip indoors, and the 100% polyester exterior is soft and durable. Each recharges in three hours using the included USB charging cord. Gray. Sizes M (Women’s 6 1/2-8), L (Women’s 8 1/2-10); Men’s 7-8 1/2), and XL (Women’s 10 1/2-12; Men’s 9-10 1/2).