Used. Sole materialRubberOuter materialLeatherClosure typeHook & LoopAbout this itemMaterial : Made of genuine leather and breathable mesh,which can protect children's young skin and is very comfortable to wear and durable.Scientific Correctional Principles: Researched and designed by a M.D. in Italy,multi-dimensional double triangular correction, built-in high-dimensional orthotic device, effectively lock the ankle, prevent ankle deformation, improve the foot heel deformity, and strengthens foot stabillty.Arch and Ankle Support Design: High-top orthopedic shoes with U-shaped inserts that can fix the ankle and foot to prevent the foot from rotating inward or outward,help to cultivate the baby's correct walking posture.Suitable for Different Feet: Adjustable double hook and loop closure, can adjust the strap length to different foot width , enhance the stability of the shoes, prevent and correct the child's heel tilt,maintains proper posture and makes it easier to clean the interior.Thomas Anti-slip Sole: Strengthen the sense of foot grip,improve the baby's balance ability when standing,and protect the baby from easy falling,relieve heel pressure, make the feet evenly stressed, and improve walking posture.