- The Power Arch (Patent Pending) delivers targeted compression where it is needed most.- Anatomical design enhances fit, delivering maximum comfort and protection by eliminating blisters.- High density cushioning provides extra protection in high impact areas.- iWick fibers wick moisture to keep feet cool and dry.- No irritating toe seam.- Fabric: 79% iWick Nylon, 13% Polyester, 8% Lycra SpandexThe Elite Light Cushion socks are anatomically constructed using Feetures' patent-pending Sock-Lock technology to provide targeted support where it's needed most. The socks are designed with high-densithy cushioning that provides extra protection in high impact zones.The Feetures Light Cushion socks are great for those who prefer cushioned comfort without a lot of bulk. Whether you are new to running or a world-class ultra runner, these socks will let you run free -- free from blisters, free from discomfort, free to savor the joy of the run... free to soar above the trail.