Do you want socks that underline a black outfit and at the same time offer an interesting pattern? The Happy Socks Filled Optic Sock Black has a black and white checkerboard optics that will liven up simple sneakers or more formal shoes. The unisex cut suits both men and women, and the size range is universal. Made from organic combed cotton, they are soft and breathable all day long. Reinforced heel and toe add durability to frequent wear. Thanks to the black color, they are easy to combine with most shades of shoes and at the same time hold the pattern as a distinctive detail.