This is a Over-The-Calf Sock in a ribbed cotton structure in a range of subtle and colorful options, that way you can find the color that suits you best. With the fabric being a combination of premium mercerized cotton, polyamide and elastane this knee-high sock will stay up for the entire day of usage. Our socks are made by our dedicated factory in Portugal with a great eye for detail and a precision that is second to none.