My son is a size 13/1 big boy. I ordered a size 2 and it fits perfectly with a little room to grow. This shoe would not be appropriate for WIDE feet. My son has normal-to-narrow feet and the shoe has no "give" room on the width at all. Perfect shoe for school and church. He wears it 7 days a week. I will be ordering a size 3 for him next fall for the new school year.