95% Polyester 5% Spandex Covering Yarn: 20/75 30/ ... 70/300 40/450 70/450 95%polyester 5% Spandex covering YarnWe can produce traditional and air ... etc.The nylon we use includes 20d, 30d, 40d, 50d, 70d, 100d, 140d, 200d etc., is raw white ... dyed, and flat or textured.The polyester we use includes 50d, 75d, 100d, 150d, 200d, 300d etc., is ... , knitting fabric, and so on. 95% Polyester 5% Spandex covering Yarn