Leatt Motocross Helmets. No matter what Mother Nature throws your way, we’ve got you covered with our wide range of Helmets. We help you rip through the mud so that you can focus on that checkered flag at the finish line. The Leatt motocross helmet model range contains many helmet designs including the latest Leatt 9.5 Helmets, Leatt 8.5 Helmets, Leatt 7.5 Helmets & Leatt 3.5 Helmets,