Bonded Nylon 6.6 sewing thread. It means is covered with special resin that protects it against friction and needle heat. Greige Yarn wound on dyeing tube ready for dyeing, the finished threads is used in footwear, upholstery, leather goods and automotive applications. Both Ex-Bonded and In-Bonded are available in a wide range of colors and sizes. Yarn Count: 210D/2, 210D/3; 280D/2, 280D/3; 420D/2, 420D/3; 630D/2, 630D/3; 840D/2, 840D/3; 1260D/1; 1260D/2,1260D/3, to 2000D/1, 2000D/2,2000D/3 etc Also, Bonded Polyester threads is available in 1ply 2ply, 3ply, and multiply.