My helmet, sad to say, does not have all that much head time. It is wiped clean when necessary and stored inside. The only problem is the pads and rather than get new ones, my sweat band that I wear anyway serves the purpose. It seems to me the helmet manufacturers are just trying to make it seem necessary. If they were to come up with something better, that's different. But all I see is lighter, maybe better ventilation, but no greater protection.