Elastic closure HIGH QUALITY: Our Workout & Training socks are made from high quality combed cotton material, soft, breathable, moisture wicking and deodorant,the socks smells fresh after long wearing, keeps your feet cool and dry all day. MULTIPLE SIZE: A variety of sizes to meet the needs of different foot code people, make all people have the same perfect wearing experience. ENHANCED SUPPORT: The widened elastic ribtop reduces the risk of sprains, and dynamic arch support helps reduce foot fatigue,great for running , jogging, training, hiking, fitness, tennis basketball and every day use. DURABILITY&FRIENDLY: Reinforced heel and toe for enhanced durability in high-wear areas. True seamless toe reduces irritation. BEST SERVICE: We provide 24-hour service, please feel free to contact us if you have any questions.