Birkenstock Arizona' Oiled Real Leather 2-Strap Women's Sandals, Black birkenstock arizona leather Birkenstock's iconic two-strap style, the Arizona Sandal, is known for being the epitome of comfort. Upper material: Leather - thick yet supple leather is breathable, durable and comfortable. Softens with wear. Footbed: The classic Birkenstock footbed - features pronounced arch support, a deep heel cup, and a roomy toe box. The footbed conforms to the shape of your foot. Sole material: EVA - flexible, lightweight, durable and shock absorbing. Made in Germany by Birkenstock.