... best price 2.Colour:white and black 3.The product is hi-performance bare spandex yarn 4.Good flexibility Detailed Product Description ... The main product is hi-performance bare spandex yarn, 15D,20D,30D,40D,70D,105D,140D,210D,280D,420D,560D,840D,1120D ... ,840D,etc. We can produce white and black spandex.Usage: Covering core, air interlacing yarn, circularly knitting, warp knitting, weft knitting, ...