The Savant bike helmet is a pure blend of race-bred style and unmatched value. The lightweight and durable In-Mold shell, the impressive airflow of 25 Wind Tunnel vents, and the adjustable retention of the Roc Loc 5 pave the way riders who want serious performance and competitive looks without the high price tag. In-Mold construction reinforces the area around the vents and ribs, creating a one-piece exoskeleton, which allows the helmet to be lighter, more durable and better ventilated than traditional designs 25 Wind Tunnel vents with internal channels thrust cool, fresh air over and around your head while forcing heat and stale air out Quite possibly the best-fitting retention system you've ever experienced, the Roc Loc 5 easily adjusts both fit tension and vertical position with a single hand, plus it's 40% lighter than its popular predecessor, Roc Loc 4 Certified CPSC Suggested Use: Enthusiast Road, Triathlon, Touring, Urban/Commute, Cruiser/Casual