I had a Suomy that I absolutely loved.
I just replaced it with a Kali Shiva. DOT certified and lighter than the Suomy and Airoh.
What makes it different is that the size of the shell is smaller. It feels so tiny on the head. And I have a tiny head to begin with...
It also has a proprietary energy absorption and dissipation design that puts it in league with the highest end units out there.