The most common sizes in which these products are manufactured include 9-12 Months, 6/9 Months, 12-18 Months, 6-9 Mo, 9-12 Mo, 3-6 Months, 12-18 Mo, 3-6 Mo, 0-3 Months, 18/24 Months, 0-3 Mo, 18-24 Mo, 3 YEARS, 5-6 Years, 2 YEARS, 4-5 Years, 3-4 Years, Newborn, ONE SIZE alebo 12M. All sizes