Humphrey Law The Grass Seed SockA unique cotton blend sock knitted with a thick slippery cotton yarn that allows grass seeds or sawdust to slip off. Absorbent and hardwearing excellent in boots and gum boots. Made from hard wearing, unshrinkable, absorbent mercerised cotton which helps to discharge static electricity. Extra reinforcing in heel and toe with a true rib top for sideways stretch. Contents: 80% Mercerised Cotton, 20% Nylon.