Thorlo Experia Coolmax SocksThese Thorlo Experia Coolmax Socks are so high-quality, they will "knock your socks off!" These top-notch socks are made with 66% CoolMax®/20% nylon/13% polyester/1% elastic and feature specially-sculpted Thorlo pads in the ball and heel to provide protection from shear and impact. The Experia feature eliminates all but the most essential padding, which significantly reducing the weight of the sock. The CoolMax® enhanced performance in the ball and heel pads provides enhanced moisture management. The lightweight achilles tendon pad protects against rubbing and chafing. The mesh design is made for weight reduction and maximum breathability. The nylon-covered Lycra® provides a contoured aerodynamic glove-like fit and a strong lightweight frame to support protective padding. Made in USA.