Know your foot type

	Normal feet have a medium arch, where the foot lands on the outside of the heel, and then rolls slightly inward (pronates) to absorb shock.
	High arches can be either rigid where the foot rolls outward too much (underpronates), functioning as an ineffective shock absorber, or flexible where the foot rolls inward too much.
	Flexible feet (often called flat feet) have a low, overly flexible arch that flattens or rolls inward too much (overpronates).

How to help
For the rigid, high-arched foot, super-shock-absorbing insoles are recommended to provide additional cushioning and foot shock attenuation. When feet are flexible (either flat feet or high-arched feet), biomechanical foot supports are highly recommended to control knee pain, plantar fasciitis, and even lower back pain caused by overpronation.