The Birkenstock clog is extremely comfortable, it is made from leather with a cork and latex-cored suede covered foot bed, with toe bar, arch support and deep heel cup. Foot bed made of natural cork and latex with a pronounced medial and metatarsal arch support, toe bar and natural heel. Flexible, durable, lightweight, and shock absorbing EVA (Ethyl Vinyl Acetate) sole. Smooth durable leather uppers with adjustable buckle across foot.