Birkenstock Unisex Arizona Black Amalfi Leather Soft Footbed Sandals - 41 M EU / 10-10.5 B(M) US Leather cork sole Fit: This style tends to run large. For an accurate fit we recommend purchasing a 1/2 size smaller than you typically purchase. For example, if you normally purchase a size 7 1/2, we recommend purchasing a size 7. Insole: Cork/Latex/Suede Outsole: EVA Upper: Oiled Leather