The Victor KinetiCore delivers great aerodynamic performance but features a shorter tail to allow head movement with minimal effect on the drag coefficient. This is accomplished by combining a small narrow frontal area with a trip wire on top of the helmet and a stubby tail at the rear. A compact helmet that allows riders to move their heads without disrupting their aerodynamic performance too much. The sides of the helmet shell are curved and drop down low enough to cover the ears so reduce wind resistance. The Victor KinetiCore has a large visor to provide perfect visual clarity. The visor can also move forward to open up two ventilation ports that create airflow throughout the helmet. Features: Easy vertical adjustability: The Lazer Advanced TurnSys system provides a tailored fit that’s easy to adjust on the move with a simple turn of the dial Natural head movement: A shorter tail with big outlet in the back allows all the benefits of an aero helmet without the discomfort or performance risk of a traditional long tailed helmet design Optimized visibility: The smoked panoramic lens comes with great features: an anti-scratch film on the outside an inwards bending to reduce drag and a magnetic attachment for easy adjustment. Popping the lens on or off just let the magnets do the work Stay fresh: The Polygiene® padding contains aerated holes which are strategically placed in front of the vents to allow the air to flow through Eyewear friendly: Recesses in the helmet shape remove pressure on the sides of the head caused by the arms of sunglasses Superior aerodynamic performance: Computer designed wind tunnel tested and race proven to provide maximum aerodynamic performance Lightweight: 4% lighter than Lazer Volante M CE Reduced materials: 20g less plastics used than in Lazer Volante M CE Weight: 430g size Medium Sizes: S 52 - 56cm / M 55 - 59cm