I ordered a 9M and they fit wonderfully! My kids are very happy with these. They did stretch to fit my foot super comfortably. the term "you get what you pay for" comes to mind. While Im not happy about what happened (and I wish I understood why it happened), I am very pleased that the company jumped at the opportunity to make it right. 5 lbs, 30" tall) wears a size 4 shoe. I rarely buy branded items. Impressed by what this watch can do and am anxious to give it to my wife for Christmas. He loves how he can start and stop music, answer calls and do pretty much everything from his earbuds. I also walk in them .