Cannondale Teramo Road Cycling Helmet White and Silver Medium SI alloy exoskeleton cage reinforcement combine with internal roll cage, the combination reinforces critical vent bridges for best-in-class safety and ventilation Multi-molding Polycarbonate shell Technology bonds the outer shell with the EPS shell for one-piece integrated design 23 Flow through vents control comfort by maintaining airflow through the helmet. Combined with Heat sealed moisture wicking pads keep the sweat under control System integrated micro dial fit w/Ergo fit EVA occipital pad. Offers unmatched comfort and combination Comfortable SOFT TOUCH webbing with cam-lock dividers offer secure adjustment and all day wear ability