Elite running socks are the most technically advanced sock.Our Elite socks are anatomically constructed using our patent-pending Sock-Lock technology to provide targeted support where it's needed most. As a result of this enhanced fit, the foot and sock become one. Our Light Cushion socks are designed with high-density cushioning that provides extra protection in high impact zones. Light Cushion socks are great for those who prefer cushioned comfort without a lot of bulk. Patented Sock-Lock Technology to provide targeted compression where it's 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. The Perfect Toe! (No irritating toe seam.) Care InstructionsMachine wash cold. Hang to dry. No bleach or fabric softeners. For best results, wash socks inside out.