The basics Gutermann Invisible Thread, made from 100% nylon, is a monofilament thread. The benefits Gutermann Invisible Thread is strong, flexible, tear-resistant, and easily blends with any color making multi-color, stylish sewing projects easy to put together. The uses For quick repairs, hemming, quick quilts, and multi-colored fabrics.  The bottom line Gutermann Invisible Thread comes in twoshades that are274 yards in length.