The collapsible heel is designed for kiddos to stomp down and easily slip their feet right in. No laces needed! An easy demonstration (that's as simple as 1-2-3) will teach them to do it on their own. Soft and flexible textile helps little feet feel comfy on the go. The squishy wavy lines on the upper are strategically designed for stability for kiddos who move in all different directions. The puffy foam collar provides an amazing plush feel. Plus, soft foam underfoot provides all the cushioning they'll need to play.