Have not tested the effectiveness of this helmet yet but it fits so good! I tried on every helmet at three different shops and this one fit just right. Build quality is top notch, very breathable, easy to adjust, and it works well with goggles or glasses.
After wearing Bell motocycle helmets in the 60's-80's and then changing brands for bicycles, I moved back to Bell bicycle helmets with this purchase. I got disgusted with the fit and lack of quality with other brands. This Sixer fits well and I am certain it will last its 5 to 6 years before replacing.
Fit and comfort 1. Can't find a light that will fit the mount that comes with the helmet. Strapped on a Lezyne in the back which helps. Fortunately haven't had a fall to test out the MIPS. I use it primarily for road riding an ebike. I broke my neck a couple of years ago riding a bike path with a front tire blowout resulting in a concussion and a broken C2 vertabrae wearing a helmet (not this helmet). Hard to say whether the MIPS system would have helped. Nevertheless I'm pleased with it so far.