Setup: Simply slide the socks onto your feet, ensuring the `L` and `R` markings align with your left and right foot, respectively. Pull the knee-high length fully up your leg to ensure the ribbed cuffs are snug. Compatibility: These socks are designed for athletic activities such as football (soccer), running, training, and other team sports. They pair best with athletic footwear that provides adequate space for their cushioned design. They are suitable for adult male athletes, but given their general design and comfort features, they can be comfortably worn by any adult engaged in similar activities. Care: To maintain the integrity and performance of your Nike Classic II Socks, machine wash them cold with similar colors. Avoid using bleach, as it can damage the DriFIT fabric. Tumble dry on low heat or, ideally, air dry to preserve elasticity and material quality. Do not iron or dry clean.