This colorfast Polyneon Thread remains brilliant even after repeated exposure to sunlight, chlorine, and washing. Great for stitching on sportswear, towels, linens, and quilts— will provide years of vibrant color. This 40 wt./2 ply, 100% polyester filament thread is extremely strong and resists abrasion and breakage during high speed embroidery. Economical 440 yd. thread locking spool.