Defeet Cyclismo Hi Vis Reflective Socks. The DeFeet Cyclismo Hi Vis Reflective Socks have their roots in the highest levels of professional cycling they were on the feet of the winner of the fastest stage in Giro d'Italia history and now with a special stripe knit from the world's first reflective yarn your visibility gets quite the boost, too. After one ride you'll be convinced, too, that these thin, no bulk wonders are what your feet have been missing. Thermo Cool Duoregulation keeps the inner climate constant, so you'll never overheat. Meta pad soaks up the rough stuff and arch support reduces foot fatigue. The AeroSpeed cuff stays put while the Aireator mesh weave cools and dries quickly. And make every day a Halloween ride with the socks' eminently bright orange hue.