Helps prevent pain from: runner's knee; shin splints; plantar fasciitis. ActivPerform Technology + Absorb 40% of impact. Designed with Triple Zone Protection. Heel: Deep heel cup absorbs impact with every step. Arch: Reinforced arch support improves transition of weight from landing to push-off. Ball of Foot: Padding improves cushioning and distributes pressure through push-off. As you run, the foot is subject to the shock of 2-3 times your body weight with every step. Dr. Scholl's Athletic Series Running Insoles: Reduce shock by 40% through ActivePerfom technology; Helps reduce wear and tear on your feet and legs; Helps relieve and prevent the pain from 3 common running injuries: runner's knee; shin splints; plantar fasciitis. SweatMax technology helps eliminate odor. Remember: Your shoe's current insoles are probably removable - take them out first! Trim to fit.