My little one ordered panda socks for Christmas for some reason! :) I looked and searched and only these could be found in their size and what would arrive in time. I wasn't sure if he liked slippers over regular socks but he was thrilled when he got them and wears them with pajamas on cold nights. They are warm, cozy and fit perfectly! For the record, he is 6 years old and wears kids size 13 shoes, and I bought socks for 8-12 years to be big enough (because other reviewers have warned that they run small). They reach to the ankles but not to the knees.