Size Description: S = 50-56 cm. M = 52-58 cm. L = 59-62 cm
[ PROTONE : Lightness and Performance ]
With just 215g of weight, Protone has the lowest drag and the fastest heat dissipation coefficients compared to any other ventilated helmet.
Thanks to several ventilation holes and a thick padding material, heat and moisture are dissipated very fast, improving comfort and performance without giving up on safety: the top area is reinforced with an internal plastic sub-structure that increases crash protection.