The intruder is probably the most known Steelhead fly out there, with a large profile and very live like action in the water. But when you want to tie flies that look good and swim well in the water you need quality materials to tie them. The originators of the Intruder Jerry French and Ed Ward looked long and hard to find the prefect material for tying these flies. They named this feather the 'drab'. The perfect ostrich plume with a stiff base that tapers into fine tips. You can cut the tips and hackle them, the rest of the feather can be tied in by stacking them or you can put the into a dubbing loop or composite loop with the use of ICE dub. If you want to tie those amazing looking Intuders, this is the material to do so.