DMC floss is the most popular threads used to stitch needlepoint and cross stitch. It is a 6-strand divisible thread made of double mercerized, long staple 100% cotton fibers in a pull-skein. Each skein is 8.7 yds. (8m) per skein and can be used with the strands together or pulled apart. The strands from different skeins can be combined creating blended and new colors.