Thank you for viewing. These are sleeping heel socks, perfect for this time of year. Wearing these socks before bed will leave your heels smooth the next morning. I was skeptical when I bought them, but I was surprised by how quickly they worked. I bought a set of two, so I'm offering one for sale. They are free size and have elastic at the opening, so they don't feel tight. Made in Japan, so you can be assured of the quality. As a bonus, I'll include leg warmers (these have been used a few times and have been professionally cleaned and stored at home. They have a slight pilling).