... knitting, as for covering, spandex bare yarn can be covered with polyester yarn, cotton yarn, nylon yarn and etc, then can ... be used in making socks, jeans, underwear, swimsuit, pants, denim or any other fabric. Our spandex ... as its former, when reached the destination.20D Spandex Yarn Specification Sheet Lycra Yarn Inspection characteristicsspecificationElongation at break ...