Coats Dual Duty XP Heavy Thread 125yd - Chona Brown - This thread is an extra strength thread ideal for heavy-duty sewing on upholstery fabric, drapery fabric, felt, fleece, denim and more. Use Dual Duty XP Heavy Thread for bold topstitching, cording and stitching hand-worked buttonholes. Colour-fast and weather resistant. 100% polyester covered polyester. 15 weight, 3 ply. 125yd (114.3m).