1. Surface material: the fabric is velvety, soft, comfortable and breathable, with good water absorption. 2. Bottom material: PU sole, low density, soft texture, comfortable and lightweight, shock and skid proof. 3. Three-point arch support: according to the foot arch concave and convex design of the foot curve, increase the contact surface of the foot bottom and distribute the pressure of the foot bottom evenly. 4. U-shaped heel: make the child s feet more fit without rubbing the shoes or shifting them.

http://olla.gr/children-pu-xo-leg-corrective-insole-size-19cm-el/