Just get one that pro teams wear, Atmos is a good choice $139 at Nashbar. Then if somebody says you look like you have a large head you can say that (insert bad@ss biker here) wears one and they won't have any comeback. The only problem with this is that the person who will comment on your large noggin is some obese person who hasn't worked out since P.E in high school, they will obviously not know who this biker is or even know that professional cycling exists. This is the only piece of my equipment that I thought "The pros wear it so it must be the best choice for me", even though it was way over my budget. The good thing is that I now where my helmet everytime that I go out, even on campus.