THREAD CONE: Features one 1,000 yard mini cone of polyester thread 100% POLYESTER: Polyarn is 100% polyester which means it has a higher heat resistance than woollie nylon threads VARIETY OF USES: Resistant to chlorine which makes it the best choice for children’s clothing as well as swimming and active wear. With its excellent coverage, this thread can also be used for simple hems or fancy stitching COLORFAST: As a colorfast yarn, Polyarn can be laundered commercially without fading MACHINE USE: We recommend using with sergers and overlock machines Superior Threads Polyarn is a premium “woollie-like” texturized polyester thread. Polyarn has excellent elasticity, recovery, and flexibility, which makes Polyarn the top choice for garment construction with sergers and overlock machines. Because Polyarn is 100% polyester, it has a higher heat resistance than woollie nylon threads. These beautiful colors are colorfast and can be commercially laundered without risk of fading. With its excellent coverage, Polyarn can be used for simple hems or fancy stitching.