Birkenstock Unisex Arizona Oiled Leather Sandals are a genuine classic that has been delighting both men and women for decades. They are made with a soft footbed that is anatomically shaped and an oiled nubuck leather upper. They also have 2 straps that are each adjustable with a metal pin buckle. The lining of the sandal is made from suede and the sole is made from EVA. The deep heel cup on the sandal helps to support the foot tissue and hold the heel bone firmly in its natural position. This provides the foot with nearly as much support when it is in a sandal as when it is in a closed shoe. The heel mold also helps to activate the calf muscles and stabilise the back of the foot. The arch supports that run alongside the sides of the footbed surround the tarsal bones inside and out, giving the foot the stability it needs when it takes a step. The support that runs through the middle of the footbed stabilises the metatarsal bone and helps to ensure that the foot has a naturally straight and solid stance. There are raised indentations at the front of the footbed near the toes. Thanks to the toe grip, 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.