three and a half year old loves them, fit her well, seems well made, however very slippery soles on smooth surfaces. Much more comfortable than any others that I have tried and the fact that they are sturdy and lasted so long is amazing. I wear a size 10 shoe and theres maybe a 1/4in of room in front of the toe and behind the heel. 52" 140 and I ordered a small. In addition, the front wheel rest in the cradle. I wanted to secure my hitch to my receiver and this came with the correct sizes for my 1. I am returning these Sennheisers and will be trying something different. These cut within the first month of use at home, and they squeaked incessantly with every step. Sound is very, very good and ANC is effective as well. The band around the shoe broke off after my son wore the shoes twice.