Breathable four-way stretch upper contours to the foot for a comfortable fit. Mozaic Pressure Relief insole lets you peel away areas where you feel pressure. Removable insole offers 1/4" of added depth. 4-way stretch spandex and IQ150 memory foam upper, jersey upper lining, polyester sockliner... Polyurethane insole, midsole and outsole. Care: Spot clean upper with a damp cloth.