The Java Sock is one of Sock Guy's first designs, and now it's a classic. Then again, a delicious cup of joe will never go out of style. Paneled for a snug, movement-free fit that increases comfort while reducing blisters, Sock Guy Java Socks are made of 75% moisture-wicking micro-denier acrylic, 15% nylon, and 10% spandex, and feature a 3-inch cuff. The double-stitched heel and toe add durability.