Vozz Helmets | HOMEDirectional Visor Stability (DVS) DVS or Directional Visor Stability is achieved by providing a 3-point locking system once the helmet is in a closed position. Once the helmet is secured to the head and the chin cup is fully adjusted to the user's jaw length, the helmets visor port remains in a static position and cannot shift whilst riding at high speeds due to the close fit. The aerodynamic lowe
