How could they improve on the industry benchmark for fit ventilation & comfort? By listening to riders, that’s how. Through this they realized that there were a few aspects of the original prevail ii that needed to be changed with the biggest request being for a lower-sitting design. They thought, "thinking big shouldnt result in bigger helmets" so with the prevail they set out to prove that big ideas can come in smaller packages. It all starts with the patented eps construction that relies on multi-density foam thats paired with a robotically woven aramid-reinforced skeleton. This comes with a reduction in the overall size creating a smaller profile that fits lower down on the head for a better fit & safety. It also has deep internal channels that are aligned from front-to-rear so the air intake & exhaust are optimized for unparalleled cooling over the entire head. & in the wind tunnel they found these new designs amounted to six seconds saved over 40km when compared to a "standard" road helmet. Another standout feature of the S-Works prevail ii is the gutter action system that manages the flow of sweat keeping it away from your eyes & dripping it off of the pads over your temple. The new angi crash sensor gives you & your loved ones peace of mind like never before, when combined with the ios or android app the sensor will detect a crash & send a text message to specified contacts in your phone. It also syncs with the app & strava to provide gps-based activity tracking. In the end the S-Works prevail iiis the most complete lightweight race helmet ever made, perfect for hot mountainous rides & flat windy sections alike.