The most popular sizes of these products are Kids, 5-6 Years, 4-5 Years, 3-4 Years, 3 YEARS, ONE SIZE, 18/24 Months, 8-9 Years, 4 Toddler, 3 Toddler, 7-8 Years, 6-7 Years, 2 YEARS, 11-12 Years, 18-24 Mo, 9-10 Years, 10-11 Years, 9-12 Months, 6/9 Months, 3-6 Months, 12-18 Months, Baby, 9-10Years, 12-18 Mo a 9-12 Mo. All sizes