Birkenstock Papillio Women's Daisy Clog Leather Synthetic sole Upper material:Oiled Leather - thick yet supple leather is breathable, durable and comfortable. Softens with wear. Footbed:A High Heeled take on the 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.