Extra-volume fitting, supple leather/stretchable Nylon uppers, padded collar. Leather lined quarters and tongue, external and internal heel counters for extra firmness, removable Poliyou® air insoles for moisture and odor absorption, enhancing foot comfort. Additional removable EVA orthotic, allowing maximum customization, polyurethane sole for shock absorption and durability. 1,000 Mile Guarantee on unitsole wear. This style is designed for care-sensitive needs and meets Medicare A5500 Guidelines including depth-inlay for multi-density inserts, adjustable fastenings, and closed-back design. Definitions Polyurethane , Quarter , EVA , Heel , Insole , Leather , Tongue , Upper Fit: True to Size Upper: Supple Leather and Stretchable Nylon