The BIRKENSTOCK footbed mirrors the anatomy of the foot so that bodyweight is distributed in a natural and balanced way across the entire sole of the foot. This way the foot receives perfect support in its biomechanical rolling motion. We offer some styles with integrated soft-footbed for very sensitive feet. The development of this footbed has taken BIRKENSTOCK years of thorough and intensive work. An additional layer of foamed natural rubber is placed in between the flexible cork-latex mix which is surrounded by durable natural jute and the suede leather liner. This layer features an extremly high degree of rebound capacity which permits long-lasting cushioning.