This high quality gutermann upholstery thread iis perfect for all your fabric and sewing applications it is a very strong yet fine thread that is ideal for repairing home furnishings highly stressed seams home furnishings and much more gutermann upholstery thread is a strong and durable thread made from 100 percent polyester it is suitable for hand and machine stitching and produces excellent results on any type of fabric including heavy weight fabrics such as denimcolour 111100 percent