The Speed-Vest is considered by its designers mykle Systems Lab as a cycling “safety device and advocacy tool.” It displays the user’s current speed in bright lights for about 6 hours with a AA battery. The clothing recently won a local contest in Minneapolis. We see a couple of things wrong here, no offense. First off, how distracting would that be to drivers behind? And second, it wouldn’t do much good if the cyclist didn’t know how fast he/she was going. We think this traveling sign needs a bit more work before hitting major markets.