My mini is currently 10 months old, weighs 21lbs and fits into both 9M and 12M sizes. I decided to order size 18-24months thinking she could wear it when she’s more comfortable standing on her own in a few months or so. But these overalls already fit her and I’m sure she’ll out grow them very soon.
Very cute! Looks just as pictured. I got my regular size and it fits well. If you’re in between sizes definitely size up. I also got the matching set for my daughter and had to exchange it for the next size. For reference my daughter is 17 months, 23 lbs, and I got her a 2T. It fit perfectly but I wanted more room to grow as she is going to wear it next summer. I exchanged for a 3T which also fits her well but has more room to grow. Super adorable and can’t wait to match together.