Birkenstock Men's Arizona SFB 100% Suede Synthetic sole Original BIRKENSTOCK soft footbed; anatomically shaped Surface material: suede Lining: suede Soft Footbed - Contoured cork footbed conforms to the shape of your foot and features pronounced arch support with an extra layer of super soft foam cushioning; a deep heel cup and roomy toe box; lined with suede Details: strap with two individually adjustable metal pin buckles