Bike helmet WATTS 2.0 made of Zipmold PVC and very high strength ABS. Rigid visor directly integrated into the shell padding, occipital adjustment system Compass Fit, weight 350g. Model not MIPS. Equipped with 11 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.