LS2 Subverter Off-Road Motorcycle Helmet. In the wild world of motocross helmets, a new star was born: his name is Subverter. The new off-road model from LS2 offers you comfort, safety, and a great look. In addition, it comes up with innovative specifications. Made of ultra-light KPA (Kinetic Polymer Alloy), an aramid-reinforced polymer, it guarantees you exceptional protection against impacts. The Subverter is just waiting for you and your next challenge.