Made from the cream of the crop cotton in Egypt, King Tut Quilting Thread TM is 100% Extra Long Staple (ELS) Egyptian Cotton. Only a small percentage of Egyptian cotton is classified as Extra Long Staple. The staple fibres are 10% longer than Long Staple cotton which means less lint and extra strength. King Tut Quilting Thread TM has the least lint and is the strongest of any cotton thread. You will just love this smooth thread.