USED - my son wore these when he was standard size 10, so I recommend sizing up. From the See Kai Run website: Find adventure on and off the playground with this Summit Blue active shoe for kids. Durable See Kai Run construction delivers maximum protection, while the deep lugged outsole provides traction in dirt and muddy conditions. Best of all, it’s machine washable! • Durable nylon textile upper provides protection • Rubberized overlays for support and stability, rubber toe cap for protection • Mesh lining and removable mesh-lined sockliner delivers healthy foot climate • Classic SKR fit gives feet room to move and grow • Adjustable hook and loop strap and elastic laces for secure fit • Machine washable • Awarded the Seal of Acceptance from the American Podiatric Medical Association (APMA) • Vegan Care Instructions: Machine wash cold on gentle cycle with mild detergent. Do not bleach. Air dry.