http://www.chinacellulars.com/images...-spc-210-1.jpg
You wanna know why he has them? Because he's a MAMIL. Him and his peloton need to wear them so they get video footage of all the cars that try to run him and his lycra-clad buddies off the road.
Yeah, because 60km/hr uphill roads are a great place for you and your idiot friends to ride three abreast and hold up traffic. Nice one!