Coats Denim thread has a heather appearance that blends in with denim fabric making it a great choice for seams and topstitching. It also blends well when mending or repairing jeans. Use a size 11 or 14 machine needle or a 7 or 8 for hand sewing. Details:Denim blue125 yd (114 m)30 weight32% cotton wrap, 68" polyester core