The B’s Baetis Hot Butt, is a tungsten-headed Euro nymph fishing fly designed to mimic the small Baetis (Blue-Winged Olive) mayfly nymphs trout feed on year-round. This pattern excels in both fast and slow water. Its slim, natural-colored body offers a realistic profile, while the brightly colored “hot butt” acts as an eye-catching trigger point that draws aggressive strikes. The tungsten bead helps it get down quickly into the feeding lane, making it ideal for tight-line or Czech nymphing techniques.  Whether you’re targeting finicky tailwater trout or freestone fish in higher flows, the B’s Baetis Hot Butt T.H. belongs in every serious angler’s fly box.