The often imitated, never duplicated, category-defining, two-strap wonder from Birkenstock. A comfort legend and a fashion staple. With adjustable straps and a magical cork footbed that conforms to the shape of your foot, a truly custom fit is as effortless as the classic design.. Heel shape: flat. Made in Germany. Suede – a soft and flexible leather with light surface nap. Soft Footbed - Contoured cork footbed conforms to the shape of your foot and features pronounced arch support with an extra layer of super soft foam cushioning, a deep heel cup and roomy toe box; lined with suede. Lightweight EVA sole for cushioning and shock absorption. Avoid extreme heat