Our Feet evolved to walk and run effectively on the ground. The arch provides the stiffness necessary to act as a lever that transmits the forces generated by leg muscles as they push against the ground. The arch also retains sufficient flexibility to store and release mechanical energy like a spring.

Seems like The most important part of our feet is “the arch”, which gives us stiffness, acceleration, shock absorbance, and stability, is built to walk on natural surfaces like ground, sand, snow, and beach, and now a day, we spend the majority of our time on flat artificial surfaces like tiles, marbles. resulting increasing ratio of FLAT FEET IN KIDS, knee pain, feet pain, leg pain, joint pain, hip pain, back pain, changing posture, and knocked knee, bowlegs, and many more.