billy Footwear Kids' Classic Lace High Top Sneakers

billyfootwear.com

Brand (Billy Footwear) is a strong candidate given the distinctive design, High-top style matches exactly, Dark grey color matches the frame and product details, White sole matches, Distinctive side zipper design is identical to what is visible/implied in the frame, Laces are present, consistent with the frame, Material (canvas) appears consistent with the frame, Product category (Kids' High Top Sneakers) aligns with toddler shoes, Official brand store retailer (billyfootwear.com) adds credibility

Billy Dark Grey Billy Classic D|R High Tops - Gray 6 Toddler Boys

Sierra

Same brand (Billy), High-top style, White sole, Side zipper design, Laces present