Not sure what style.
It has an elastic strap that goes over the top of head,
and it fastens in the back with velcro.
Helmet cannot be real tight fitting, or it will screw up the mask when you pull
it on.
I also use a No-Fog w/ a HJC AC-X3 helmet. Also with Oakley Crowbars. I love this set up. No fog. No cold. It just flat out works. The No-Fog that I have is made by Artic Cat(and Im a loyal polaris guy). It does look pretty goffy without a helmet on, but it works great.
As for lense color, thats all personal preference. Your just going to have to see what works for you.