I recommend the Z1 Kineticore!
"One of the primary reasons that I purchased the Z1 Kineticore was that it rated highly in the Virginia Tech helmet ratings. I have ridden with it several times thus far and I find it light, comfortable, and fits my head well. The rear adjuster secures the helmet good after putting it on. Yes, it would be a bit better if the fore and aft straps could adjust. Although I find that the center of the V of the straps does fall under the center of my ears, as they should. The Polygiene lining wicks sweat well and doesn't smell. I recommend this helmet."











