Thin type that can be attached to the back strap.
Scrubbing is a phenomenon that is mainly prone to happening in three places: heel, instep, and toe.It comes with a thin type of cushion that can be attached to the back strap, so it is recommended that you attach a thin type of cushion to the area where it hits the strap.The thickness of the heel pad can be adjusted when using the 4D design and thin cushion.