Brentwood 2.0 PVC bicycle helmet, Zipmold technology, soft visor, K-type strap, weight 345g, CPSC, EN1078 standards S : Head size from 52 to 55,5 cm. M : Head size from 55,5 to 59 cm. L : Head size from 59 to 62 cm. We will easily fall for this Brentwood 2.0 bike helmet as much for its matte and radiant color as for the sure protection it will bring us with style and modernity.