polyester spandex covered yarns: 1. single covered yarns 2. air covered yarns 3. 2075, 4075, 20150, 40150. 4. coloured Polyester spandex covered yarns for sweater, jeans fabric, knitting and weaving.2075, 4075, 7075 available.conventional covered yarns and air covered yarns. Polyester Spandex Covered Yarns