Why Over & Under Socks? They last. Most of the socks sold use synthetic materials like nylon, polyester etc. Synthetic materials can actually harm nice shoes. We use 100% Egyptian Cotton Luxury socks. Once you wear our socks, you’ll never want to wear anything else on your feet. Why Cotton? Unlike synthetic socks, our socks breathe, reducing foot odor and perspiration. Reinforced Toe and Heel Our socks are reinforced with cotton yarn instead of nylon. It’s stronger and better for your feet. Egyptian Cotton Eqyptian cotton is picked by hand causing less stress to the fibers and leaving them straight and intact. These fibers result in very fine yarn without sacrificing length resulting in softer and stronger cotton material. Fits Perfect Your feet stay very comfortable throughout the day. *Picture of summer weight 100% cotton socks Seamless Toe Our socks don’t cause uncomfortable rubbing because we don’t put seams where they don’t belong.