Made of three layers of thickened faux wool felt, this insole is characterized by higher density, enough thicker feel and better warmth retention. The insole is formed by high temperature hot pressing technology, which makes the fibers interlace to form a number of air holes. It is characterized by sweat absorption and not stuffy feet, which can improve the comfortable walking experience. It is constructed of artificial wool material. There are 8 sizes for you to choose from. It is suitable for daily use, sports, outdoor, school, work and so on. Item Name: Insoles Material: Artificial Wool Features: Ergonomic Design, Sweat Absorption, Thicken Size Details: Size: 37, Length: 23.5cm/9.25" (Approx.) Size: 38, Length: 24cm/9.45" (Approx.) Size: 39, Length: 24.5cm/9.65" (Approx.) Size: 40, Length: 25cm/9.84" (Approx.) Size: 41, Length: 25.5cm/10.04" (Approx.) Size: 42, Length: 26cm/10.24" (Approx.) Size: 43, Length: 26.5cm/10.43" (Approx.) Size: 44, Length: 27cm/10.63" (Approx.) Notes: Please refer to our size chart and choose the right size. Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Package Includes: 1 Pair of Insoles