Features - Boyd ST Crew Socks Classic sock that reaches to the middle of the calf Medium cushioning Cotton blend Infiknit Targeted cushioning Arch support Seamless toe box Deep heel pockets Size: 38-42 Technologies Crew A classic sock that reaches 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. Targeted padding Padding for extra comfort where you need it. Arch Support Arch Support gives you a secure hold and stabilizes your movements. Seamless toe area Seamless toe area against friction: your feet will love it. Deep heel pocket Deep heel pockets for a comfortable fit.