Birkenstock Birkenstock Women's Arizona Cream Sole Sandal,Purple Haze Leather,38 N Eu nubuck Upper material: Nubuck - Quality leather is buffed for a soft and velvety finish. The original Birkenstock footbed - Featuring pronounced arch support, deep heel cup, and roomy toe box. Footbed molds and shapes to your foot. EVA Sole - Flexible, lightweight, durable and shock absorbing.