Hush Puppies ZeroG technology incorporates a polyurethane outsole making the shoes almost weightless. Features direct attach construction which creates a permanent chemical bond between the leather upper and outsole which provides for long wearing durability and shock absorbing comfort. The full grain waterproof upper repels water. Waterproof construction: all stitched seams are sealed to prevent water penetration. Leather quarter and tongue lining with fabric vamp lining for climate control comfort. Padded instep and collar provide cushioning around the ankle area. Hush Puppies ''Gel'' heel pad provides additional cushioning during heel strike. Removable, leather covered. Contoured EVA footbed provides cushioning underfoot. ABS Shank supports the midfoot arch area. Airport friendly.