Clarks Women's Cosign Slip-On 100% Leather Rubber sole Heel measures approximately 0.25" Polyurethane Soleassage footbed provides cushiony, massaging comfort to reduce foot fatigue. Neoprene and spandex upper lining stretches around foot for a comfortable fit. Soft, breathable nubuck leather upper helps keep feet cool and dry. Nubuck leather and synthetic leather upper, neoprene / spandex upper lining... Synthetic leather sockliner, molded polyurethane insole, EVA midsole, rubber outsole.