Sewing Thread for Sewing Machines/ Bag Closer

When choosing thread for a sewing machine, consider the following: Material: Common thread materials are cotton, polyester, and a blend of both. Cotton is good for natural fabrics, polyester is strong and flexible, and blends combine the best of both. Thickness: Thread comes in different thicknesses or weights, indicated by numbers. For most general sewing, a medium-weight thread (like 40 or 50 weight) is suitable.