COOLMAX® Polyester Made in USA Seamless closure COOLMAX Core Technology – Socks made with COOLMAX fiber are designed to transport moisture through the fabric and help it to spread quickly, thus enhancing fabric drying rate. It does this to help keep you feeling cool and dry, helping to optimize performance. Low Cut Design is perfect for Golf, Tennis, Running or any outdoor activity. Ultra Smooth Toe Seam, compact cushioning for ultimate comfort, Reinforced Heel,Toe, and Foot Bed for Maximum Durability. Tab to prevent blistering and to prevent the heel from slipping down into the shoe. Arch compression for support. Great Gift Idea! Each Pair is individually sealed so they will stay clean and dry when you need them! Please see size recommendations below.