Volt Unisex Indoor Outdoor Heated Slippers - Gray Small Nylon Upper/Rubber Outsole Built-in heat keeps you warm at the press of a button Indoor-outdoor design Keeps you warm for up to 5 hours Extra heat helps improve circulation on cold days Thin profile - Patented Zero Layer technology provides heat without adding extra bulk You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!