Features - Run Light Crew socks Classic sock that reaches to the middle of the calf Targeted cushioning Nylon blend Infiknit FreshTek Active fabric Engineered ankle protection Seamless toe section Channeled Air cushioning Technologies Crew A classic sock that reaches up to the middle of the calf. Medium cushioning Moderate cushioning throughout the sock for a secure fit with improved impact protection. Infiknit Stance uses a jet of air to give the nylon fiber a texture that allows it to grip to the twisted yarns. This grip significantly increases abrasion resistance, which prevents holes, tears and rips. Active fabric Active fabric keeps you cool with maximized airflow and breathability. Engineered ankle protection Engineered ankle protection protects your feet from annoying shoe rubbing. Targeted padding Padding for extra comfort where you need it. Seamless toe area Seamless toe area against friction: your feet will love it. Channeled Air cushioning The Channeled-Air padding ensures breathability.