Synthetic threads are made from man-made fibers, often derived from petroleum products. Common types include polyester, nylon, and acrylic. These threads are designed to be strong, durable, and resistant to various environmental factors, making them popular in textiles and manufacturing. Unlike natural threads, which come from sources like cotton or wool, synthetic threads can be produced in a wide range of colors and textures. They are often used in clothing, upholstery, and industrial applications due to their versatility and cost-effectiveness.