"Miraculous Feet No Chilling Feet - Furu Toe Beige 5 Pairs" are a heel warmer that can be attached to the bottom of the sock, which has been adjusted specifically for the inside of the shoe.
Insulated sheet keeps heat out and keeps you warm. Can also be used for pantyhose Deodorizer formula. Unisex
Uses the insulation technology of paulownia ash, "Miraculous No Chill of Your Feet".