Pro innovationcastelli first saw this back in 2009 when their cervelo testteam rider jeremy hunt rode the omloop het nieuwsblad in knee warmer that he had cut to knee length it took six years for it to catch on they saw half a dozen or so riders starting the 2015 omloop with that same look so castelli engineered a fabric that lets them leave a soft raw edge at the back of the knee that wont cut into you and they started riding prototypes once again the guys who do this for a living have co