Birkenstock Unisex Arizona Iron Oiled Leather Sandals - 11-11.5 2A(N) US Men Leather Synthetic sole Fit: This is a unisex item available in two widths. The narrow width fits like a ladies Medium "B-C" width and is a true narrow for Men. The Regular width fits like a women's wide "D" width and fits like a Men's medium. Insole: Cork, Latex, Suede Outsole: EVA Upper: Leather Features of this item include: Arch Support, Back to School, Buckle Fastening, Comfort Shop, Cork, EVA, Favorite Sandals, Foot Care & Wellness, Holiday 2016, Latex, Leather, Premium, Spring, Spring 2016 Sandals, Spring Metallics 2016, Suede