Birkenstock Arizona 'Soft Footbed' (Unisex) Dark Brown Natural Oiled Leather Sandals 100% Natural Leather Upper in Dark Brown (Oiled) & Soft Footbed. Arizona by Birkenstock in Dark Brown Natural Leather - thick yet supple leather is breathable, durable and comfortable - leather will soften with wear. The Soft Footbed takes all the features of the classic footbed and adds an extra layer of latex foam providing millions of tiny air bubbles to cushion every step. This initial extra softness is great if you are a first-time wearer, or someone who has sensitive feet or perhaps who have a thinner- or flat feet. Because of the extra layer of foam Soft Footbed, styles do tend to fit a bit snugger then the classic footbed products. Just like the standard Birkenstock shoes you remember, but the soft footbed is immediately comfortable - requires less of a molding- or breaking in period. They have either a yellow or blue imprint on the footbed.