NEW IN BOX!! Retails$50 MEDIUM ARCH SIZE XS WOMENS size 5 to 6 Mens Size 3-4 The Spenco Ground Control insole, available in three arch heights, reduces excess material around the heel to smooth out your foot-strike. With updated learning on the mechanics of the foot, Ground Control seeks to work with the foot, not against it. The neutrally positioned center-of-pressure design centers the foot and reduces pronation forces. NEW CUSTOMER? Use my code @lucyscatz to receive $10 off your first purchase🥰