Depending on the type of quilt you’re doing, you’ll need various types of threads. For the most recommended and most common, people normally turn to threads designed from natural fibers, like silk, cotton, wool, and even flax or jute. You can either have your threads from cellulose or from synthetic fibers. These synthetic fibers will be designed from nylon, polyester or metallic. You’ll normally see cotton, metallic and rayon as the most popular threads.