The Altis helmet has a covering shell of polycarbonate with 14 openings and a high density EPS protection molded by injection. The Smartshock protection system improves safety against oblique impacts. The 11 pieces of smartshock elastomer integrated under the body allow to better disperse the forces in case of impact. This MTB helmet has a practical and precise adjustment system, a visor adjustable at several points and an internal antimicrobial and breathable padding.