Tom Travis is considered one of the premier fly tiers in the world. He created an excellent series of parachute emergers covering a number of the major mayfly species. In this case, the Pale Morning Dun trout fly. Look for all the Travis Hi-Vis Para Emergers and keep supply in your box. These trout flies are easy to see because of the parachute style. Best of all, they work well. Color, PMD. Fly in sizes: 16, 18.