LONG LASTING COMFORT FOR BALL OF FOOT, ARCH AND HEEL. FLEXISPRING ARCH SUPPORT: Distributes foot pressure. 3/4 FOOT LENGTH, SOFT FOAM CUSHIONING: Comfort without crowding your toes. STAY IN PLACE BACKING: Adhesive backing so insole stays in just the right spot. FITS DRESS SHOES, WORK SHOES, AND CASUAL SHOES. SCIENTIFICALLY ENGINEERED. DOCTOR RECOMMENDED, LOVED BY FEET! Recyclable CARD AND PLASTIC TRAY INSERT (Not recycled in all communities).