I originally purchased a version of this boot by Ministar from Target for $20. My son was around 12 mos old and I bought the XL (12-18 mos; largest Target had). He wore them on a concrete floor to push around his ride ons and literally wore them until there were holes in the bottom last week (He is now 2). After I found out there wasn't a larger size in that brand, I searched for a similar style and found these. I ordered and received them very quickly from Amazon about a week ago. He has worn them every day from the time he gets up until he goes down for naps/bedtime. He doesn't try to take them off and loves that they have "fuzzy" inside. He wears around 8.5 shoe and these are a little large on him (2T-3T) but they do not flop around on his foot. He is very happy with them and that makes Mommy a happy camper too. Just ordered a second pair to keep at Grandma's house. Would highly recommend.