A "modern classic" developed by Rim Chung, the RS2 is one of our favorite Blue Winged Olive (BWO) emerger patterns. But, it can be a great all around mayfly imitation as well. You can fish this off the back of a dry fly, or down deep. This version is tied with CDC which gives this fly an irresistible fluttering/emerging movement by trapping air bubbles in the fibers.
Tied by: RIO flies