judanzy knee high tube socks for boys, girls, baby, toddler and child (2 pack) (4-6 years, white with red and blue stripes) judanzy these judanzy tube socks come with our judanzy anti-slip grip soles, designed to protect your little ones from slipping on smooth surfaces. 0-6 months = shoe size 0 - 1 6-12 months = shoe size 1 - 3 12-24 months = shoe size 3-6 2-4 years = shoe size 6-9 4-6 years = shoe size 9-1