49% Polyester, 13%Spandex, 15%Elastic, 24%Nylon Imported Machine Wash [SIZE] Fit US sock size 9-13 (L/XL). Machine wash. [MOISTURE -WICKING & BREATHABILITY] Made of materials like polyester and nylon, wick away moisture from the feet, keeping them dry and comfortable during running or other physical activities. Allow air to circulate around the feet, preventing overheating and sweat buildup. [CUSHIONING & DURABILITY] Have extra padding in the heel and toe areas to provide cushioning and shock absorption, reducing the risk of injury and blisters. Our running socks are designed to withstand the wear and tear of repeated use and frequent washing, ensuring they last for a long time. [ARCH SUPPORT, ELASTICITY & NON-SLIP] Additional support in the arch area, which helps to reduce foot fatigue and pain during long runs or workouts. Adding spandex to the running socks makes our socks more elastic for better support and health during sports activities.The cuffs of the running socks with increased friction to keep them from slipping down during physical activity. [FIT FOR MULTIPLE SPORTS] The runningsocks are suitable for various sports such as running, hiking, camping, cycling, backpacking, jogging, tennis, golf, and more. It is the first choice for family, friends and lovers on festivals or anniversaries.