Athletic Socks: These Feetures socks are engineered with Targeted Compression and anatomical design that conform to the left and right structure of the foot providing a custom-like fit and reduced risk of blisters because of the seamless toe construction Light Cushion Sock: These Feetures socks provide a thin cushion option without the bulk for added impact protection Invisible Fit: These Feetures socks rest below the top of your shoe to stay hidden in performance or casual shoes Breathable Socks for Men & Women: These sports socks are made with moisture-wicking fibers to keep feet cool and dry; plus no irritating toe seam Feetures Lifetime Guarantee: Our family-owned company takes pride in products that are built to last, which is why we are happy to provide a Lifetime Guarantee on all our socks; if unsatisfied, return for a replacement