The sizes indicated correspond to your head size in centimeters. The foam must be the same size as the helmet. - EXTERNAL SHIELD: injection-molded in thermo-composite resin to reduce the risk of perforation. Thanks to its front openings and rear extractors, this helmet offers optimum ventilation. - INSIDE SHIELD: EPS shock-absorbing element in variable-density expanded polystyrene, which absorbs and distributes shock waves. - INSIDE FOAM (LINER): comfort foam coupled with soft, antibacterial fabric. Made in one piece, it is interchangeable and washable thanks to tabs that fit between the two caps. - FRAME: made of thermo-composite elastomer resin, which gives it a degree of flexibility in line with required standards. Why choose the TWIN LOCK SYSTEM chinstrap? - Highly resistant, made from thermo-composite resin and injected fiberglass. - Unrivalled stability and support - Optimal safety with greater protective coverage, especially on the neck - Thanks to its rigidity, the entire helme...
