Vertical and horizontal impact protection, maximum sun and rain protection with the largest possible field of vision at the same time, perfect functional rear ventilation with adjustable ventilation slider, replaceable sweat headband to clip in, patented size adjustment with 20 levels of synchronous adjustment, all-round impact absorption, extremely flexible due to modular accessories for the Protos Integral solution, holds and fits perfectly on the head, Pfanner Klima-AIR technology inside for perfect moisture transport. According to EN397.