Giro Xen helmet
This is my bike helmet. Giro makes top-notch products that last. They also come in limited edition, cool color combinations every year. The Xen is in their Mountain biking category, but it works perfectly well for road riding as well. It has a little more protection in the back of the head (which is important) and a useful little sun visor up front. Plenty of well spaced, well designed vents keep you cool. It also has a ratcheting lock in the back to get a perfect fit. Highly recommend.