*NON REMOVABLE INSOLES* .The Olaf Style is a slip-on with contemporary styling, accented with exaggerated side gores and perforated upper. Sheepskin upper linings and sheepskin covered HPO2Flex™ socklining provides the ultimate in cushioned comfort. The unique triangle design offers multidirectional flex capability, conforming to the way you walk. Flexible and durable leather and rubber outsole has a leather veneer heel, all-around sewn leather welt, with a leather section in the waist, embossed with the Hush Puppies® logo.