Lazer Cage KinetiCore Bike Helmet - Matte Black KinetiCore Controlled Crumple Zones absorb the force of direct impact and rotation in an impact to redirect energy away from your head and protect you when you need it most More protection and more comfort. The Cage KinetiCore can be combined with a neck guard for increased safety. The magnetic buckle closes quickly and is easy to use even with full-finger gloves Runs large.