HIGH PERFORMANCE DESIGN: Reinforced yarn and padding in the heel and toe areas provides cushioning, shock absorption, and improve durability. Arch compression enhances comfort. Ribbed stay up leg design ensures the sock stays up and doesn’t slide down. COMFORT AND BREATHABILITY: These premium quality Michigan Socks provide soft comfort. Mesh panel ventillation above the foot allows for proper air flow. Keeping the feet dry. Moisture management technology pulls away moisture from skin. QUALITY CONSTRUCTION: The durable construction and fiber blend allows the socks to retain their shape even after continual use and multiple washing. Machine wash inside out with cold water and tumble dry low. GREAT GIFT IDEA: These Officially Licensed NCAA University of Michigan Wolverine Socks are a great stocking stuffer or gift for your favorite UM Wolverine fan. They can be worn in the office, at the tailgate, and even on the field. Show your spirit. Go Blue!! ?? PERFECT FIT & MADE IN THE USA: Small – Youth Shoe Size 12-5, Medium Womens Shoe Size 5-10 and Mens Shoe Size 5-9, Large – Womens Shoe Size 10-13 and Mens Shoe Size 9-12, X-Large Mens Shoe Size 12+. Proudly made in the USA.