Just as a note, I wear a good skateboarding helmet and I added a little side mirror like @Marty Backe uses. It has taken a bit to get used to and it is a bit fiddleily(sp), but I don't have to turn my head to see what is going on behind me and makes me feel much more comfortable. The first week or so it was actually more dangerous as it is in your vision and you have to figure out how to see in front and behind you at the same time, but now it is good. I would definitely encourage riders to get one. It will NOT make you look cool however, I feel like such a goober wearing it, but I am significantly more situationally aware and safer.