The new adidas running no show sock was designed with best in class technical performance attributes. the no show silhouette includes a back heel tab for zero slipping, blistering or abrasion while running. designed to wick away moisture and ventilate through mesh on top of the foot. cooling nylon yarns provide a smooth ride and ultimate comfort for longer runs. with all over compression, you have a secure, snug fit inhibiting any friction while running. anatomically designed with a left/right specific design.