"So what are the key features of this helmet?"
Some of the key features include:

:: Double Visor System:

At the push of a lever you can pull a dark visor down from inside the helmet, moreover these visors are road legal and replaceable with other colours.
:: Quick Release Visor System:
Ever struggle to get a visor of your helmet, not any more, place the visor in the half-way position, push a button and that's it, visor off.
:: Cool Max Air System:
The inside of the helmet is designed in such away that it keeps you cool when you're warm and keeps you warm when you're cold.