Olive body with slate gray hackle and wings for realistic mayfly imitation
Fine tail design enhances lifelike movement in water
hackled construction for added durability and natural presentation
Best suited for spring and fall Baetis hatches overcast and drizzly conditions
Trusted by fly anglers for its effectiveness in challenging weather
Summarized by Shop
The Blue-Winged Olive is the classic hackled dun for the hatch that defines technical dry fly fishing. An olive body, slate-gray hackle and wings, and fine tails match the Baetis mayflies that emerge on the worst weather days of spring and fall—when the fishing is best.
BWOs hatch when it's cold, gray, and drizzly, and trout feed on them
Type
Artificial fishing fly
Body Color
Olive
Hackle Color
Slate gray
Wings
Fine texture
Material
Metal
Summarized by Shop
4.8
4 ratings
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Thnak you guys so much for being very responsive and correcting the missing flies for me. Can't wait to get them in the water!
B
Blane · October 27, 2025
Very nice. But all but one of my size 18 flies had glue over the eyelet and would not push thru. Not the best situation on the river. Overall your flies are great and your company. I will return!