About the Helmet This race-inspired design is known for its incredible fit & tremendous value. It has many similar features to the S-Works Prevail, like the Tri-Fix webbing system & 4th Dimension Cooling, granting the Propero III incredible performance at a more attainable price. The new ANGI Crash Sensor gives you & your loved one’s peace of mind like never before—when combined with our i OS or Android app, the sensor will detect a crash & send a text message to specified contacts in your phone. It also syncs with our app & STRAVA® to provide GPS-based activity tracking. Key Features Easy-adjust, Hair Port FSL II fit system with four height positions & micro-adjustable dial Composite matrix internal reinforcement allows larger vents for greater cooling Soft 4X Dry Lite webbing material won’t stretch out with sweat or water