Doctors warn that daily pounding and stress on your feet can radiate harmful impact shockthroughout your body, causing foot and joint pain, back aches, swollen ankles and more. Sting-FreeT Comfort Insoles are the only 3-in-1 insoles that combine patented shock absorption with luxurious comfort and odor control. Clinically proven to reduce impact shockwaves up to 8 times greater than ordinary insoles. The most comfortable, form-fitting insoles you can buy without going to the doctor! Trim for a custom fit. Washable. One pair.