Birkenstock Arizona Sandal Aspen Gold Oiled Leather Size 37N Leather eva sole Uppers are made of thick leather that's minimally processed; they're durable, breathable, and comfortable Suede footbed liner naturally wicks away moisture EVA outsole is lightweight, flexible, shock-absorbing, and repairable This style features the Birkenstock soft footbed; a cork and jute support system that molds to each individual's footprint Foam layer between the suede footbed liner and cork offers cushioned comfort