$ 0 0 Couver Sports Socks are Terry Cushioned on Toe, Sole and Heel Couver Sports Socks use Elastic construction on Foot Arch and Ankle to ensure perfect fits Our BS70, SSS88, SSS06, SSS07, BS100, BS120 models use about 80% cotton, whereas many of sports socks in the market use polyester, acrylic, etc..