Match Socks made by Canterbury of New Zealand. These socks are made from 50% nylon 40% polyester and 10% elastane. They have an elasticated rib turnover to help keep the sock in position. They have additional ankle and arch support which reduces slippage and bunching in the boot. Colour: Black 50% nylon 40% polyester and 10% elastane Elasticated rib turnover to help keep the sock in position Additional ankle and arch support which reduces slippage and bunching in the boot.