I crashed two days after buying a Lazer Cyclone MIPS, top of the VTech safety ratings. No concussion, but a small dent and scratch on the Lazer. It's no longer readily available to buy, which is a bummer, but I haven't worn it since. In the meantime I still have the once-king of those VTech ratings, the Bontrager Ballista, but I ordered a new road helmet to replace the Lazer since I feel silly wearing an aero road helmet on slower rides.