These Tie Dyed socks are made with tube construction. They are 88% cotton, 11% Nylon, and 1% Spandex. Note: Sock Size is different than Shoe Size. Typically: Sock Size 6 – 8.5 fits shoe size 3-5 Sock Size 9 – 11 fits shoe size 5-10 Sock Size 10-13 fits shoe size 11+ So, sock size 9-11 is most popular. 2921702$7.99Color/Sock-Size: Red 6-8.5Red 9-11Red 10-13Royal 6-8.5Royal 10-13Purple 6-8.5Purple 9-11Pink 6-8.5Pink 9-11Black 9-11 Customer Service (888) 561-3364 Copyright (c) 2000. All Rights Reserved. Site Design by It's Your Prerogative