Abstract: The flexible conveyor belt is flat when at rest. It has internal reinforcement embedded in layers of elastomer material. The reinforcement comprises a first sheet of longitudinal cables that provide traction strength, a second sheet of transverse cables that provide transverse traction strength, and a stiffening layer having high resistance to transverse compression. The stiffening layer consists of several narrow strips lying in a common plane at rest, the strips are mutually adjacent and are separated by gaps of sufficient width to allow the conveyor belt to be folded between two rows of rollers in a conveyor.