3M Scotchlite reflective tape is available in white and black, but CycleGadgets sells only the black version. It’s the heavy-duty “engineer-grade”, 7 mil (0.007″ thick), seven year, black reflective ...

The FlashBack products are high quality, and made from 3M reflective stock ... so you can see that both flags offer a pretty bright reflective flash. Photo 4 (right) adds a strip of white reflective ...