Boeing and American manufacturer of sports equipment Russell Brands are working together to incorporate leftover carbon fiber from B787 Dreamliner production in Russell Athletic protective athletic gear. Composite materials make up 50 percent of the primary structure of the 787, including the fuselage and wing.Boeing and Russell Athletic see significant benefits in using aerospace-grade carbon fiber because the carbon filaments provide a high strength-to-weight ratio and greater durability. Aerospace-grade carbon fiber is thinner, stronger and approximately 10 percent lighter compared to competitors.An initial collaboration uses the material in Russell Athletic’s new CarbonTek football shoulder pad system. The aerospace-grade carbon fiber is strong, thin, light and durable, Boeing said. In football pads it also offers increased range of motion and secure fit for the athlete’s body.Boeing says several “elite” college players from Division I universities will be wearing the CarbonTek during the upcoming football season, as well as Russell Athletic’s three pro football ambassadors: Pierre Garcon, Mark Ingram and Colt McCoy.