The bell stratus joy ride womens mips helmet is a direct descendant of the pro level zephyr bringing the level of advanced engineering and design to an all new womens model its the perfect combination of minimal weight aero efficiency and cutting edge comfort technologies to help you climb sprint or ride from dawn until dusk the all new float fit system offers comfort and security with a streamlined fit and a rubber coated dial thats easy to adjust on the fly the overbrow ventilation