These are tabi socks for children. I received these new at a photo studio and wore them twice: once for a pre-Shichi-Go-San photo shoot and again on the day of the shrine visit. They have been washed and stored at home since then. *The size "11-12" is written on the inside of the ankle (see image 2). Please be aware of this before purchasing. Although the size is listed as "11-12," I measured the actual length from the tip of the toe to the heel, and it's about 11cm. Thank you for your consideration. m(._.*)m