Features - Run Crew ST Socks Infiknit Feel 360 Classic sock that extends to the mid-calf Medium cushioning Functional nylon material mix Channeled air cushioning Ankle protection Active padding Active fabric Technologies Infiknit Stance uses an air jet to give the nylon fiber a texture that allows it to cling to the twisted yarns. This grip greatly increases abrasion resistance, which prevents holes, tears and rips. FEEL360 Stance has managed to use FEEL360 technology to make the socks quick drying, antibacterial and extra durable with specially twisted yarn. Crew A classic sock that extends to mid-calf. Medium cushioning Moderate padding throughout the sock for a secure fit with improved impact protection. Channeled air cushioning Channeled air cushioning provides breathability. Engineered ankle protection Engineered ankle protection protects your feet from annoying shoe rubbing. Active padding Active cushioning combines impact protection with comfort to keep you moving forward. Active fabric Active fabric keeps you cool with maximized airflow and breathability.