The Elk Hair Caddis is considered a searching type pattern as it resembles the general form of adult caddisflies or small stoneflies. The Elk Hair Caddis is not limited to trout fishing. This fly is also very useful when fishing for steelhead. Deer hair is sometimes used when elk is not available. Our nimble fingered tiers ties this particular version is tied on very small hooksfrom sizes 16 to 24.