Louis Garneau - Tuscan X-Long Cycling Socks 22% nylon The Tuscan socks are made with 75% Meryl SkinLife, a fabric that's ultra moisture wicking, 22% nylon, and 3% Lycra. The extra-long cuff increases comfort and blood flow by eliminating pressure points caused by regular cuff designs. The ultrathin construction minimizes the loss of power transfer caused by regular friction between your feet and shoes. Ultra-breathable mesh upper and under aligns with ventilation channels in Louis Garneau shoes for increased airflow. Reinforced heels and toes offer more durability.