Pro-Tec Riot Boa Helmet
And you thought Boa was only for snowboard boots. Not anymore. The Boa system wraps the plush interior of the Riot around your head to provide one of the best fits available. The sleek polycarbonate shell has a clean look with seven passive vents on top and earpads that are ready to accept most drop-in audio systems.The Pros: Boa system, audio compatible.
The Cons: Minimal venting.