... the Spandex Covered Yarn with Cotton we can offer(Spandex+Cotton) 40s/40D,32s/40D,21s/70D,16s/70D High quality cotton spandex yarn, 20D ... yarn, rayon/nylon core yarn, rayon/spandex core, viscose/acrylic core yarn, and so on. cotton spandex yarn: for the spandex covered with cotton20D,30D,40D ...