I've been wearing an
Arai Vector-2 since 2012, when I started riding, so it is my first and only helmet. I purchased the helmet because it fit my head and has a
Snell rating. It is very comfortable but I believe it would probably be considered noisy. It is also not a good helmet for cold-weather riding...I have to tape up the chin vent inside and out to prevent leakage and wear a face/neck shield stuffed up into the helmet to ward off cold. No chin curtain is offered.
Now, I have grown
skeptical of the Snell rating. It is oriented around unrealistically high-energy impacts and even double impacts at the same location. The Snell test forces a helmet design that may not provide sufficient reduction of G-forces to the brain in most typical motorcycle get-offs, where your head hits the pavement.
I am focusing intently now on the innovative
6D ATS-1, with dual EPS layers separated by elastomeric isolation dampers that extend deceleration time and also reduce rotational accelerations that result in the most traumatic brain injuries.
The ATS-1 is a premium helmet with a lot of features. I like the emergency release cheekpads and the cold-weather-friendly removable chin curtain and neck cuff. Plus, it comes with a Pinlock visor for fighting fogging and condensation. I have this on my Arai and it works.