Opt for the absolute in total head protection with Fly Racing's Formula Helmets. This is the cold weather version of the helmet that includes the breath box for winter use. The Formula's Adaptive Impact System (AIS) whose high-performance ecosystem of structural designs and energy mitigating material - including RHEON, a leading-edge viscoelastic material - is fine-tuned to greatly improve impact managemant over traditional helmets. Enjoy elevated defense against a wider range of impacts when you ride with a Formula.