Toddler Heru Collar Onesie Primary Jersey, 100% super soft cotton with snap closure at bottom... size 0-3 3-6 6-9 9-12 12-18 18-24 Height 22 22-25 25-27 27-29 29-31 31-33 Weight 7-10 10-14 14-18 18-21 21-25 25-28