Sew All Thread Recycled is a 100% recycled polyester thread. It is fiber-free, has even thickness, is non-twisting, tear-resistant, flexible, and colorfast. Suitable for all types of fabric and seams, for hand or machine sewing. Recommended needle size: Universal needle 80-90. This universal sewing thread is made of 100% recycled Polyester. Use it for sewing with a sewing machine and by hand for closing and backstitch seams, ornamental stitches, and decorative seams on all fabrics, woven fabrics, and many other materials.