Since your son wears size 1-2 in shoe size, you should get the 13C-4Y size, which refers to size 13 in child shoe sizes up to size 4 youth shoes.
Additionally, is 5c a toddler size? With a soft measuring tape or ruler, measure the heel-to-toe length. Be sure to measure to the longest point of the toes.
SIZE CHART: C = CHILD.
FOOT LENGTH (in.) US SIZE 4 9/16 4C 4 15/16 5C 5 4/16 6C 5 9/16 7C
Keeping this in consideration, what age is 5c shoes?
for Small Kids for Children between 4 and 6 years. Big Kids ? for Youth sizes between 7 and 12 years.
What is 7c in shoe size?
Nike Childrens Shoe Size Chart Nike Size Centimeters TODDLER 5C 11.8 6C 12.7 7C 13.5