Turn Signal Bicycling Jacket: Cool or Not?

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This Turn Signal Biking Jacket, designed by Leah Buechley, uses wrist-mounted switches to activate LED arrows on the back. It's easier than using old-fashioned hand-turn signals, and the lights provide an added element of safety.

Though it's not for sale — I think it's just a prototype — this could be a smart purchase for cyclists. What do you think?

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