Originally this Motorcycle Armor was manufactured under French Police contract and designed with the newest safety technology. Bright orange panels are a high-tech D30 inchdilatant inch material which display properties similar to a non-Newtonian fluid: each stays pliable and flexible under normal conditions, yet instantly firm up under stress for maximum shock-absorbing potential. Each panel is sewn into the included mesh lining for wear under a typical police motorcycle jacket. The mesh lining is sized for a tight fit, but you could easily cut out the armor panels (which are the cool part!) and add them to your own custom motorcycle armor solution. The evolution of inchsmart inch soft armor. D30 dilatant soft armor first debuted in the civilian world at the 2006 Winter Olympics, where panels were worn by the U.S. and Canadian ski teams. The technology would go on to provide a new level of shock-absorbing impact protection in a variety of products for sports, footwear, electronics, workwear and of course motorcycle armor. High-tech D30 dilatant smart armor panels cover shoulders and arms Nylon and polyester stretch fabric Mesh lining is sized for a tight fit Wear as-is, or cut out armor panels and modify for your own custom project