The Atomic Four JR is the complete protection package for young speedsters, all with the same understated, urban-inspired style as the adult Atomic Four models. Now, you can remove the liner and ride with a hat and goggles under the shell if you wish. Comfortable and cool, it features Atomic Aircon, an advanced ventilation system that draws hot air away from the head. And, of course, like all Atomic helmets, it offers optimal protection, with an in-mold shell and an Atomic Holo Core that absorbs shock and generates up to 30% more impact protection than the industry standard.