Made with lightweight fabric for a smooth feel and less bulk, the Nike Socks offer lasting comfort in a snug design that supports your workout from start to finish… Product Features: Lightweight construction offers less bulk… Arch support creates a snug feel… Reinforced heel and toe provide durability in high-wear areas… Product Feature Subheads: Product Details: 75% cotton/18% polyester/6% nylon/1% spandex. Machine wash. Imported.