Technically advanced yarns for the ultimate stretch and comfortable fit. Arch support keeps sock in place and helps prevent slippage (even when wearing a larger size). Smooth comfort cuff that keeps the sock in place without sacrificing comfort. Yarns knitted with graphics in mind, using Merge4’s cult weave design to hold the graphics integrity while stretched. Y-heel pocket improves fit and comfort. Knit 1 dual layer Comfort Combo wicks moisture and creates padded sole for added comfort and fit.