The Dainese Pro-Speed stand-alone backprotector offers maximum protection and maximum freedom of movement thanks to an exclusive aluminium internal structure which can adapt to changes in temperature. The hinges allow lateral and vertical/longitudinal torsion and with 28% of the surface being ventilated, airflow is excellent. The Pro-Speed backprotector is CE-level 2 certified. Please check the size chart carefully as the Pro-Speed backprotector comes in 6 sizes.