Thick, comfortable dirt bike socks Need more padding? The 180 Kairos Socks bring the ultimate protection and comfort to your ride, with thick construction and arch support to offer a more padded and snug fit inside your motocross boots. Thick construction for a padded, comfortable fit Articulated construction for a precise fit Arch support Materials 52% acrylic, 42% nylon, 5% polyester, 1% elastane