Helmet Airoh TRR Toni Bou Replica 2016. This is the helmet most advanced that has ever made Airoh for the world of Trial. Its outer shell (external structure) has been performed with fibers composed of Kevlar and carbon. Design tested in the wind tunnel. In this model special attention has been paid to the ventilation system. This is formed by the air inlets in the front and air extractors in the rear area. These extractors facilitate the exit of hot air from the inside of the hull. The cushioned interior offering a high level of comfort and are fully removable and washable. The visor is adjustable in height. Retention system micrometric. Weight: from 900 gr (varies according to the size).