Helmet Bontrager Circuit MIPS GreyIf you could only buy one helmet, buy this one Whether your finish line is on the race course or at the front door of your destination the Bontrager Circuit MIPS road helmet will deliver the performance you need. It's equipped with all the best features, like MIPS brain protection system, Boa fit system for superior comfort and security, and the Blendr mount system for light and camera integration. MIPS (Multi directional Impact Protection System) was