While horsehair is not exactly new as a tying material, this probably is not the hair you expect. Arctic Runner has the consistency of squirrel tail with the body of bucktail. It actually has two types of fibers - a soft, dense marabou-type underfur and longer stiffer guard hairs - giving it a lively yet solid texture that's perfect for mobile streamers, wings, accents and small bonefish flies. The material remains vibrant and extremely active in the water and is quite durable. It ties as easily as bucktail and casts well.