The footbed is made from a blend of cork and Setouchi olly briefs. Environmentally friendly material with synergistic effect demonstrates superior antibacterial properties. It also has a deodorizing effect, so it can be used comfortably all year round. Fitting Adjustment: By laying it inside the shoe, the inside of the shoe will raise the bottom and adjust the fit. There may be individual differences, but depending on the use of the insole, you can wear it with a size smaller than 0.2 inches (0.5 cm). Please use an insole with the same size as the shoe size. (Example: 5.9 inch (15 cm) shoes have a 5.9 inch (15 cm) sockline).