Some leather looks worse the longer you own it. Birkenstock's oiled Arizona does the opposite — the upper is built to develop a richer, more personal patina with wear, while the same contoured cork-latex footbed and suede lining underneath keep doing the actual comfort work.
Q: Will the leather on this Arizona Oiled change color over time? Yes, and that's by design — the oiled leather upper is meant to darken and develop a patina the more you wear it.
