A cycling specific sock using Meryl SkinlifeĀ® yarns and a Diaphanous web mesh on the top of the foot for total foot happiness on long hot summer rides. The no ankle cuff makes them practically invisible hence the name. Key Features:Meryl SkinlifeĀ® yarns feature bacteriostatic silver ionsDiaphanous web mesh on top of footMidfoot support bandNo ankle cuff to be practically invisibleHeel tab to prevent rubbing on the back of cycling shoe