Birkenstock depict natural materials in their refined eco-friendly aesthetics. These Boston shearling suede clogs in white capture the German label's preference for study designs. Engineered in high quality suede with a natural lambskin footbed and strap lining. The sole is EVA and helps provide sturdiness and comfort. Upper: Suede With Shearling Lining Footbed Lining: Shearling Sole: EVA Details: Shearling, Individually Adjustable Metal Pin