Product Color: Tan Fit : Full Fit / Standard Outer Material : Faux Leather Inner Material : Faux Leather - Warm Lining Heel Length : 10.5 cm Sole Material : Neolite Sole Production Place : Turkey Ankle circumference is 28 cm for size 38, Calf circumference is 37 cm, leg length is 49 cm. The bellows part is fixed, there is no extension in length. There is a 0.5 cm difference between the numbers. The product is full mold. One larger size is recommended for combed and half-jointed feet. It is 100% handcrafted. It is suitable for daily use.