With its internal Roll Cage reinforcement and rugged In-mold construction, Giro's Pneumo offers excellent protection no matter how fast you ride. Its 19 massive Wind Tunnel vents scoop air and channel it around your head for superb ventilation. And, the sculpted fit and Roc Loc 5 fit system will make you wonder if the Pneumo was designed especially for your head. In fact, the ventilation, light weight and superb fit are so impressive, you might wonder if you're wearing a helmet at all.
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I crash tested this helmet by falling 10 feet off a wall and landing on my head. (MTB terrain park) I saw stars for a minute, but carried on for the rest of the day. The helmet actually broke into 9 pieces that were held in place by the shell. It worked perfectly and I'm alive. I was lucky, but using a top quality helmet is luck you can't afford not to have. Now I have an Atmos, better ventilation, but heavier than the Pneumo.