What is LS2's KPA shell? KPA - Kinetic Polymer Alloy. Since 2015, LS2 has been manufacturing helmets from the brand new, LS2 patented space age material KPA (Kinetic Polymer Alloy). KPA is
100% Original Ls2 Ff906 Advant Kpa Full Face Capacete De Moto Masculino Flip Up Motorcycle Modular Double Lens Helmets - Helmets - AliExpress