Made of polypropylene to improve life and longevity. It has good resilience and a powerful leaf spring action that provides the necessary push in the walk’s swing phase. It can be customized using a hot air gun. Thin construction allows its use inside the shoe. Anatomical shape provides good weight distribution and maintains the foot in the functional, dorsiflexion position. Top Padding is made of hypoallergenic, non-toxic and odorless, durable closed-cell PE foam. Cushion pad filled with 3D air provides the necessary comfort and ventilation.