This invention generally relates to the configuration of the inner surface of a traction band which increases the protection of the embedded reinforcing elements without reducing the flexibility of the band or increasing the generation of heat. The outer surface of the band generally comprises a plurality traction lugs while the inner surface generally comprises a plurality of drive and/or guide lugs. According to the present invention, each group of traction lugs, drive lugs and guide lugs, which are generally laterally aligned, defines generally non-flexible lug areas and each of these lug areas are separated by flexible and generally lug-less hinge areas. The lug areas, on the inner surface thereof, further comprise projections located between the drive lugs and the guide lugs and along the wheel paths defined therebetween.