Bold. Innovative. Advanced. Modular. LS2’s Metro reimagines the possibilities of a modern, full-face modular motor- cycle helmet. It starts with the aerodynamic shell built from our exclusive Kinetic Polymer Alloy (KPA). This super strong alloy offers exceptionally lightweight and a bit of flexibility for energy absorption with penetration resistance that rivals that of high-end composites. The Metro is dual-homologated as both a full-face and open-face helmet.