Upper: synthetic material Insole: textile, synthetic material Sole: rubberDetails: AirWair sole heel loop, Goodyear weltHeel Type: flatPlatform Height: approx. 4 cm Shaft Height: approx. 14.5 cmShaft Width: approx. 24 cmToe-Cap: roundClosure Type: laces, zipperAdvice: Please waterproof the shoes before first wearing.