Steelhead often feed on squid in the ocean. When they migrate close to the coast before and during entering river estuaries, they will often feed on Sand Shrimp to fatten themselves up before their big trip into their native streams.
Steelhead fly fishermen are always tying and innovating their patterns to imitate these shrimp, while at the same time give the fly plenty of action to lure a "grab".
Materials starting from hook forward:
Sand Shrimp coloring
Sand Shrimp swim backwards