18 air vents bring cool air in through the front, allowing it to pass over your head and then flushes warm air out of the rear ports * Adjustable and removable visor and visor plugs make this bike helmet perfect for on-road or off-road use * In-mold construction fuses the helmet"s outer shell with the impact-absorbing line * It is made of high quality material, you might even forget that you"re wearing anything at all * It"s the perfect mix for riding roads, trails and everything in between