● Prevents forward slippage and makes shoes fit your feet by attaching it to the instep. ● You can secretly adjust the size because it is attached to the inside of the shoe's instep and is not visible when you take them off. ● Made with deodorizing fabric, so you don't have to worry about odors. Free size for women 2 pieces, for both left and right shoes Material: Polyester, polyurethane, PVC foam Made in Japan We will ship it in a compact form.