I really like how the Giro Roc Loc 5 LED Rear Helmet Light fits on the back of this helmet. it's a little pricey, but you pay for quality.
After my recent crash resulting in a TBI, I needed a new, safer helmet, This GIRO was one of the highest rated on the Virginia Tech helmet testing site.
Really nice looking, and comfortable helmet. Very light and easy to adjust.
Hopefully I will never find out just how well it protects me in a fall.