Sean over at MAKE posted these practical “Early Winter Night Biking Gloves” from Irene Posch at Fashion Technology. The gloves have an LED arrow on the back that lights up when the user needs to make a turn, so that the biker will be more visible to motorists on dark nights.
The Early Winter Night Biking Gloves consist of knitted wool gloves having conductive areas on each fingertip as well as on the palm of the hand. When forming a fist they close an electric circle, causing the LED-arrow at the back of the hand to light up. A 3V coin cell battery needed to power the LEDs is hidden in the cuff of the gloves.