In milwaukee, WI U.S.A. by law you are required to wear a helmet and have working head/taillight if you ride in the street bike lanes. I also ride bmx so head and hand safety is always an issue. Im rocking giro bmx helmet in matte black with bicycle manufacturing stickers all over it and a big "drug free" in the front.
http://www.giro.com/us_en/products/men/helmets/dirt/section.html
http://www.giro.com/us_en/products/men/helmets/dirt/section.html