The Papillio footbed is molded by Cork and natural latex to mirror the shape of a healthy foot. This footbed provides a natural walking surface. Two layers of woven jute strengthens the footbed and wicks moisture away from your feet. Papillio suede footbed liners are specially tanned for softness, absorbency and comfort. Shoeupper Birkoflor: Birko-Flor is a durable, soft texture synthetic upper material of a very high quality. The correct width: * Regular for regular feet * Narrow for slim, slender feet