The most popular sizes of these products are Toddler Girl, Baby Girl, Girl, 8-9 Years, 6-7 Years, 4-5 Years, 3-4 Years, 2 YEARS, 5-6 Years, 6/9M, 9/12M, 3/6M, 12/18M, Kids, 7-8 Years, 11-12 Years, 9-10 Years, 3 YEARS, 4 Toddler, 3 Toddler, 2 Toddler, 6-9 Mo, 9-12 Mo, 10Y alebo 12-18 Mo. All sizes