Birkenstock Unisex Arizona Slide Fashion Sandals, Mocha Leather, 41 N. Lightweight, flexible outsole provides durability and shock absorption. Raised toe bar encourages a gripping motion that helps exercise your legs and improve circulation. Leather, suede or nubuck upper, suede sockliner, cork / latex footbed, EVA outsole. Care: Leather: Buff with a leather cleaner or polish. Wipe off with a dry cloth.