SemperFli Dirty Bug Yarn got its because it has the multiple colors found on insects and invertebrates, whether you are tying shrimps, baetis nymphs, caddis nymphs it does not matter. We decided to blend multiple color materials into Dirty Bug Yarn High Contrast Olive creating a 2 ply yarn so that you can tie larger nymphs or split the 2 ply yarn for smaller flies.
