Slip SmartSole Insoles into your everyday walking shoes or running shoes and experience the benefits. SmartSole Exercise Insole enables your foot to go through a gentle rolling motion allowing your heel, arch and then toe to touch the ground in sequence. SmartSole features an integrated hard heel cup with a medical grade gel insert to catch shock forces and redistribute them more evenly. Cushion, roll forward, and then roll off -- comfortably, naturally. This optimal gait stimulates your metabolism, speeds up muscle regeneration and works to tone and tighten your legs and butt. The built up arch support provides flat feet and shin splints relief and the gel insert in the heel strike absorbs shock and provides plantar fasciitis treatment. SmartSole is a 3/4 length insole, so there is no trimming necessary. If you're on your feet all day SmartSole Insoles provide energizing support and cushioning.