... Air Covered YarnNYlon + Spandex: 20/20, 20/40, 40/40, 70/70, 140/140, 20/70,40/70DTY 15d/7f , 20d/7f, 30d/12f ... : 40d/34f , 70d/48f , 70d/68f, RWDTY Dope dyed yarn: 40/12 black, 70/24 black, 100/36 blackDTY intermingled yarn: 70 ... receiving your reply Spandex nylon air Covered Yarn Nylon 20/40, 20/70, 40/70, Polyester 20/75 ...