This best-selling insole gives you superior motion control and cushioning. Low profile design fits into running shoe with sockliners or insoles that can't be removed. It also works well in lower-volume casual and sport (running, mountain biking, or tennis) shoes. Ideal for flatter feet that may not tolerate the more supportive Superfeet All-Purpose Support Medium Arch Insole. Great NEWS! QUALIFIED MEDICAL EXPENSEYou may be able to put your FSA, HSA, or HRA funds to use to cover the cost of select items!