My twins have countless pairs of adidas high tops. I never had an issue with the sizing until I bought these which I returned. They were very narrow and too small. I would recommend ordering a size up if they are for a boy.
Breathable Fashion Sneakers for Baby & Toddler Boys & Girls: Bless Children Walking & Running Shoes
54 Review
ALEADER Walking Sneakers Lightweight Purple Girls' Shoes and Athletic
52 Review
Saucony Girls Cohesion Running Little
52 Review
New Balance Reveal Running Little Girls' Shoes and Athletic
56 Review
Capezio Girls 3800 Mary Jane Tap Shoe in Caramel - Size 11.5 M Toddlers
49 Review
Adorable Blowfish Malibu Play-t for Toddler and Little Girls
47 Review
Slip-Resistant Crib Shoes for Babies: Robeez Soft Soles for Girls and Unisex Toddlers, Ages 0-24 Months
53 Review
Felix Flora Toddler Flower Dress Shoes - Adorable and Comfy Flats
47 Review