World's Softest Men's / Women's Quarter Socks just may be the most comfortable sock you've ever worn. Designed to be the most comfortable sock you've ever worn. Ultra-soft acrylic creates plush, softness that wicks away foot moisture, and durable nylon adds stretch for long-lasting fit. Full, terry cushioned interiors cradle your feet for shock absorption and extra comfort. Contoured heel and toe pockets provide an anatomical fit to deter slipping and bunching, and work with the low-profile toe seam to help prevent irritation. Reinforced heels and toes offer durability in high stress areas. Cushioned tops stay in place with no binding.