The castelli rosa corsa sock a cycling specific sock using meryl skinlifereg yarns and a diaphanous web mesh on the top of the foot for total foot happiness on long hot summer rides a 5cm cuff keeps the cycling tan long and low to the ankle castelli rosa corsa sock features meryl skinlifereg yarns feature bacteriostatic silver ions diaphanous web mesh on top of foot midfoot support band 5cm ankle cuff