Abs and Legs Exercise | SmartSole Exercise Insole
This exercise works your abs and legs.
Here's how you do it:
SmartSole Exercise Insoles convert your everyday shoes and sneakers into toning shoes and relieve pressure on your joints & back. The built up arch support make these great insoles for flat feet and insoles for shin splints. and the gel insert in the heel strike absorbs shock and provides plantar fasciitis relief.