I bought 2 different sizes because I was not sure where my 9mth old would be. So I purchased a 6-12 and 12-18. The 6-12 were too tight for his foot and the 12-18 came with a ‘#2’ sticker. And they are too big now but they give us something to grow into. The quality of the shoes are great! And delivery was faster than expected. Urban Tots customer service was great! After placing my order they sent me a messenger massage that I appreciated. Thank you!