Replace "woollie-like" nylon products with a heat resistant and colorfast "woollie-like" polyester. An exciting new texturized thread designed for sewing on polar fleece, minkee, knits, and stretch fabrics, Polyarn has the bulk, elasticity, and flexibility popularized by "woollie-type" nylon, but has several important added features. Polyarn is colorfast and can be laundered commercially without fading. It is equally resistant to chlorine which makes this the best choice for children's clothing as well as swimming and active wear. The additional concern of "yellowing" associated with weathering and aging in nylon products is also avoided. Polyarn has a higher temperature resistance than nylon products. Iron safe on low and medium settings. 1000 yd spools.