- Size: 38 • Insoles made with natural leather to provide the best care and comfort for your feet. • The top layer is made of genuine black leather, which absorbs sweat and allows your feet to breathe properly. • The bottom layer is made of activated carbon foam, which neutralizes odors and provides extra cushioning. • Its design is ideal for use in everyday, casual, sports, elegant, and dress shoes, as well as in high heels and sandals. • They help maintain comfort, odor control, and adaptability to different types of footwear. • It is recommended to check for allergies before use.