My favorite one is the Impact carbon fiber Air Draft OS20. The air inlet comes in at an angle kind of half way between the top air and side air helmet placement. I currently have the Impact SC Vapor and like it but will buy the OS20 next time. The vapor has less visibility at the bottom of the opening compared to the OS20. Also, mine is top air which I don't prefer. On another note, your neck will be less fatigued going from a composite to a carbon fiber. Hope this helps.