The Feetures High-Performance No Show Tab Ultra Light is a perfect sock for the athletes who are after a minimalist and lightweight feel. The sock is knit using Feetures Cool Feet Ventilation to ensure your foot stays cool and dry. The ultra-light sock is knit with Lycra bands. The snug-fit technology keeps the sock securely in place. It is made of 85% iWick Polyester, 12% Nylon, and 3% Lycra Spandex.