cottonnatural cellulosic textile fiber constituting the seminal ha fabric with a complex weave, it is composed of a simple weave (its basic structure), on which is fixed an additional thread, called pile thread – this pile thread is cut to give its velvety aspect to the fabric – when it presents ribs (woven in serge weave), we speak about corduroy – when these ribs are very fine, we speak about milleraie velvet