I'm a newb but in the short time I've been riding bicycles it appears to me bicycle helmet designers and manufacturers have done a very poor job. I am a lifelong motorcycle rider and motorcycle helmets are far superior in design, function and safety. Motorcycle helmet manufacturers have made good use of all the composite materials available now like carbon fiber and kevlar. The motorcycle helmet industry discovered a long time ago that when plastic hits asphalt it can cause as much harm as it is designed to prevent. Maybe there is a bicycle helmet manufacturer that I'm not aware of that is using 21rst century materials but I'm not convinced I need a cheap plastic dorky looking helmet like I see on the local greenway. By the way I would never ride my motorcycle without a helmet.