Birkenstock Women’s Arizona BF Soft Footbed Regular Fit Sandals have iconic style complemented with the signature comfort of the Birkenstock Women’s footbed. The upper is made from the skin-friendly, hard-wearing synthetic material Birko-Flor. The Birkenstock Women’s Arizona BF Soft Footbed Regular Fit Sandals have a durable, synthetic upper material with a leather-like finish and soft backing. The contoured cork footbed conforms to the shape of your foot and has pronounced arch support. The sandals are lined with suede and have a flat heel shape with a deep heel cup. The heel cup supports the foot tissue and holds the heel bone firmly in its natural position. The sandals also have a heel mould that activates the calf muscles, stabilises the back of the foot, and improves gait and coordination. The sandals have interior and exterior longitudinal arch supports that surround the tarsal bones inside and out and give the foot the stability it needs when it takes a step. The sandals also have a transverse arch support that runs through the middle of the footbed and stabilises the metatarsal bone. The transverse arch support helps ensure that the foot has a naturally straight and solid stance. The sandals have raised indentations at the front of the footbed near the toes that help the toes remain loose and spread out in their natural position. The indentations also support the natural rolling motion of the toes. The footbed is drawn up especially high at the front, which protects the toes during the rolling motion of the foot.