Casca Bicicleta MTB Specialized Chamonix 3 MIPS Visiniu L - 60124-1824- Ventilation: Taken directly from our premium S-Works Evade 3 and S-Works Prevail 3, our 4D Brow Cooling leaves a gap between the helmet and forehead, drawing airflow into internal air channels—all so you can feel the rush of air through the helmet at slow speeds, keeping you plenty cool when the going gets hot. - Personalization: The visor comes in handy for extra sunny days—but if that’s not your thing, easily pop it off for a seamless look. - Mips: The Chamonix comes equipped with Mips Essential Core—a low-friction layer that allows a sliding motion of 10 to 15mm in all directions. Studies indicate that this reduces some of the rotational forces transmitted to the brain during angled impacts. - 5-Star Virginia Tech Helmet Rating: The Chamonix earned the highest 5-Star Virginia Tech Helmet Rating from the internationally renowned Virginia Polytechnic Institute and State University. - Headset SX fit system with micro-adjustable dial for easy, secure, and accurate fit. - Tri-Fix web splitter for improved comfort and ease of strap adjustments. - The Chamonix comes with an easy-to-remove - and re-install - visor. - 4th Dimension Cooling System optimizes ventilation. - Weight: 330g (Medium)