Redesigned: (1) The shape of the FRTP guard has been changed to a shape that highlights the convex shape of the ankle area. (2) Spread the thin and breathable "StralexTM" area to the instep of the foot to reduce bulk. (3) The FRTP guard is pre-installed in the guard pocket to reduce the hassle of installation. You can also put it outside of the guard pocket when adjusting the position.