Large arm opening to reduce chafing when running

Featuring our top sock technologies

Lightweight polyester insulation at front and upper back

6% Spandex

or everyday wear

Birkenstock Arizona Birko-Flor Regular Width Black Size:43-REGULAR (US W 12-12.5 M 10-10.5) Large arm opening to reduce51791 An icon of timeless design and legendary comfort, the Arizona sandal has been defining style since 1973. The laid back look comes in durable Birko Flor for a classic, leather like finish. Complete with legendary BIRKENSTOCK design elements, like a contoured cork latex footbed for the ultimate in support. Contoured cork latex footbed creates custom support with wear Birko Flor synthetic leather upper Suede footbed lining helps keep you