ToeSox Sport / Sandal Toe Socks, Organic Cotton 10% spandex Five-toe design for enhanced moisture wicking properties over traditional athletic socks Individual toe pockets promote toe separation for increased flexibility and strength resulting in better blood circulation Contoured heel and seamless design ensure a comfortable fit for better performance Made with organic cotton, ToeSox are the green alternative for athletic socks Wear ToeSox on those cool evenings with your flip flops