An innovative thread that allows you to sew elastic seams using a normal lock stitch on a conventional sewing machine with Eloflex as the top thread and in the bobbin. Perfect for leotards, gym clothing, cosplay, swimwear, knit sportswear and stretch denim. This package contains 225 yards of thread. Colorfast even with chlorine bleach. Comes in a variety of colors. Each sold separately. Imported.