Your arch collapses and the sole of your foot is in complete contact with the ground.
Flat feet are common in children, often resolving as they get older. They are not always symptomatic or painful.
If the arch is low when the foot is off the ground Formthotics™ can provide support for the foot to encourage better function and posture.
If the feet look flat when standing they are probably pronating. Formthotics are designed to reduce pronation. They do this through their unique heat moulding process and arch contour design.