This Coat Lets You Signal Your Turn With Flashing LEDs
a coat. But it's got a trick quite literally up it's sleeve, in the form of embedded LEDs that flash when the rider raises his arm to signal a turn. The orange lights along the back of the arm seams then flash for a few seconds, telling any furious white van drivers stuck behind them they they're about to change lanes or turn. The bottom of the back of the jacket has red brake light style LEDs in it too, although the coat's not yet clever enough to sense a rider's braking.