US Patent 8225534 Article of footwear with a flexible arch support

An article of footwear is disclosed that includes an upper and a sole structure secured to the upper. The sole structure may include a flexible arch support adapted to provide support for a user's arch while permitting the arch to flex away from the user's foot. The flexible arch support may include a plurality of articulatable segments that, from a resting position, can rotate with respect to each other away from the user's foot, while resisting articulation in an opposite direction. The upper may include articulatable straps that secure the article of footwear to the user's foot while providing flexibility for foot bends or other movements.