Check the listing for details. DIRTY BUG YARN - 5 Meters - 7 COLORS - Fly tying Materials - Dubbing Thread. Color: Multicolor, Condition: New. Listed at 3.49 USD. DIRTY BUG YARN - 5 Meters - 7 COLORS - Fly tying Materials - Dubbing Thread It's called Dirty Bug Yarn because it has multiple colors found on insects and invertebrates. Insects and invertebrates are not just one color but a range of mixed colors across their body. So why do we often use single color dubbing to imitate nature? Whether you are tying shrimps, baetis nymphs, caddis nymphs it does not matter. These have a great blend of multiple colors and materials that make Dirty Bug Yarn a creative and useful 2 ply yarn that you can tie larger nymphs or split the 2 ply yarn for smaller flies. We combine all multi-product purchases to give you the best possible shipping rate. Please visit our store for many more varieties and colors of chenille and other fly tying materials! Fly Tying MaterialsDirty Bug YarnDubbing ThreadDubbing Yarn