The most common sizes in which these products are manufactured include M, S, L, XL, 18/24 Months, 6/9 Months, 4-5 Years, 9-12 Months, 3-4 Years, 3-6 Months, 18-24 Mo, 12-18 Months, Women, Men, 6-9 Mo, 6-7 Years, 5-6 Years, 8-9 Years, Toddler Girl, 40, 3-6 Mo, 9-12 Mo, 12-18 Mo, XS a Toddler Boy. All sizes