Dr. Scholl’s® Active Series All-Purpose Sport & Fitness Comfort Insoles are designed for people who participate in a range of athletic activities where they experience muscle fatigue in their feet and legs. Why it Works:. During most athletic activities, the feet and legs are subject to a range of different physical motions and shock, and without the right support this can lead to muscle fatigue. Dr. Scholl’s® Athletic Series Sport Insoles use Massaging Gel® Advanced technology to cushion feet, absorb shock and support the arch of the foot for increased motion control and stability. How to Use:. 1) Your shoe’s current insoles may be removeable, if they are take them out FIRST. 2) Place the removeable insoles against the back of your Dr. Scholl’s® insole and trim to match the old insole size. If your shoes’ insoles aren’t removeable, cut to your shoe size using the trim guide found on the bottom of your insole near the toes. 3) Place insoles in your shoes’ toes first with the cloth side UP. Ensure the insole heel rests firmly in the heel of your shoe. Recommend replacing insoles every six (6) months or at first sign of wear.