Biot Olive Mayfly - Tungsten

The Biot Olive Mayfly is a beautifully tied, slim-profile nymph built to match a wide range of olive-colored mayflies, including Blue-Winged Olives (BWOs) and small green drakes. The biot body provides tight segmentation and natural taper, giving the fly a clean, realistic silhouette that shines in clear water and technical conditions.

The Biot Olive Mayfly Tungsten is a slim profile nymph built to match olive mayfly and baetis style food below the surface. The biot body gives it a segmented look, while the tungsten bead helps it reach productive depth quickly.

This pattern is useful when trout are feeding on small olive nymphs, mayflies, or general subsurface insects in clear water, riffles, seams, and tailwaters. It has a natural profile that works well when fish are selective.

Fish it under an indicator, on a Euro nymphing rig, or as a dropper behind a heavier fly. It is a strong choice when trout are feeding below the surface and a clean olive nymph profile makes sense.