Bike helmet WATTS 2.0 in Zipmold+ PVC and very high resistance of ABS. Rigid visor directly integrated into the shell padding, Compass Fit occipital adjustment system, weight 350g. Model not MIPS. Equipped with 11 air vents. 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 revolutionary WATTS 2.0 bike helmet as much for its dark green color and its elegance as for the sure protection that it will bring us with style and modernity.