If you are a traditionalist, Pearsall"s Gossamer Silk Thread is your thread of choice. If you go to the fly tyer"s dictionary and look up some of the most elegant and effective wet flies and soft hackles, you will see Pearsall"s Gossamer Silk Thread listed in the fly formula as the thread to build the masterpiece. Pearsall"s Gossamer Silk Thread is colorfast when you dab on your finish cement. Pearsall"s Gossamer Silk Thread is about similar to a 6/0 thread and suitable for even very small flies. Pearsall"s Gossamer Silk Thread is amazingly stretchy, take a section and gently pull on it between your hands to see just how far you can push it. Pearsall"s Gossamer Silk Thread is available in close to or more than 24 wonderful subtle and bright colors.