* The D2 is the benchmark in the full-face bicycle helmet market. With its legendary TLD style, this helmet has been the choice of more championship winning riders than any other. * Astonishingly light in weight & incredibly strong, the D2 is the perfect helmet for BMX, mountain biking, & even other action sports like snowboarding. Article: Troy Lee Designs D2 Sonar Downhill Helmet, white-red, Size M L Article: Troy Lee Designs D2 Sonar Downhill Helmet, white-red, Size M L, white-red, Size M L