150D polyester black air covered with 40D spandex yarn with 2.9 Draft for denim ... yarn producer in China with denier 10D, 15D, 20D, 30D, 40D, 70D, 140D, 280D, 420D, 560D, 840D, 1120D, 1680D. ... Our regular ACY yarns are mainly 40D or 70D spandex with polyester or nylon. Our product can ... and regards, 150D polyester black air covered with 40D spandex yarn with 2.9 Draft for denim