Hook: sz 6 - 10 light wire dry fly (Gamakatsu S10 hooks are a fine suggestion.)
Tail: Deer hair
Body: Mr Lemire preferred musk ox dubbing (because of its water repellency) which can be a challenge to find, however almost any dubbing can be used.
Throat: Grizzly hackle
Wing: Caribou which has a natural curve that Mr. Lemire preferred (can substitute with deer or elk hair.)
Antidote in a few mins.....
Realizing that summer/fall run steelhead are curious and can be aggressive in nature, Mr. Lemire designed the Grease Liner as the first waking dry fly to trigger surface grabs. Such a simple pattern, but so deadly effective. Fished on the swing, it has enticed many steelhead to the surface...it needs no further testing or tinkering.
Harry preferred natural materials and was quoted as mentioning that he did not like the "Buck Rodgers" type of flies. To be honest, the Grease Liner can't compete with the foam and flash of today's current selection. But it is not trying to compete; it is waiting for that certain angler that wants to give a nod to simplicity and effective tradition. Use a little floatant on the leader and keep swinging the surface. It will move steelhead.
I have caught steelhead with the Grease Liner in all types of the normal summer/fall conditions. In bright sun, in fast flows, in shallow water, and even in frog water it will still catch fish. At times when it gets sucked under, the Grease Liner is natural enough that steelhead will still find it appetizing.
It's winter and snowing, now is the time to start your resolve in tying steelhead dryflies. Pay homage to steelheading history and tie the most effective dry fly for steelhead ever made. Surface grabs will be seared in your memories.