YLI Woolly Nylon cone 1000m various colors 23 COLORS AVAILABLE CLICK HERE

Wooly Nylon by YLI is an actual stretchy, so this thread is good for use in the loopers of your serger to make very stretchy garments.  This is the thread Margaret uses in her knit class - you can wind this thread on a bobbin and make stretchy seams on a regular sewing machine.