Leather and mesh uppers offer soft, pliable wear in style; adjustable straps for secure wear Linings ensure next-to-skin comfort; contoured footbeds supply light support Polyurethane midsoles supply lightweight cushion for all-day walking U-shaped polyurethane heel stabilizers and thermoplastic urethane shanks provide lightweight support Ahnu Gracie shoes feature carbon rubber outsoles for reliable traction on a variety of surfaces