Tatami Adana Blade Black Leather 40 R Upper material: Oiled Leather - Thick yet supple leathers without additional dyes to keep the leather breathable, durable and comfortable. Footbed: The original Birkenstock footbed - Featuring pronounced arch support, deep heel cup, and roomy toe box. Footbed molds and shapes to your foot. Sole material: EVA - Flexible, lightweight, durable and shock absorbing. Made in Germany