The Codax KinetiCore provides comfort and style. One size is all you need with this helmet. This helmet includes a visor to keep the sun out of your eyes and it is equipped with the Lazer TurnSys system for an easy to adjust fit while on the move. Features: Easy vertical adjustability: The Lazer Turnsys system provides a tailored fit that's easy to adjust on the move with a simple turn of the dial Guaranteed fit: One size fits all. The helmet shell and fit system is designed to accommodate a wide variety of head sizes and shapes LED light compatibility: Increase safety and visibility by attaching the Universal Lazer LED at the rear of the helmet via the Direct Mount Better visibility: A fully integrated visor looks great and keeps sun out of the eyes and off the face Lightweight: 19% lighter than Lazer Compact DLX MIPS M CE Reduced plastics: 70g less plastics used than in Lazer Compact DLX MIPS M CE Size: Uni-size 54-61 cm Rated 4/5 stars by Virginia Tech* *Since 2011 Virginia Tech have been providing unbiased helmet ratings that allow consumers to make informed decisions when purchasing helmets. Their impact tests evaluate a helmet's ability to reduce the linear acceleration and rotational velocity of the head resulting from a range of head impacts a cyclist might experience. Helmets with more stars provide a reduction in concussion risk for these impacts compared to helmets with fewer stars.