Natural and dyed whole calf tail.
Individual tails have short crinkly hairs.
Commonly used for wings on dry flies ( Wulff's Trudes. parachutes posts, etc. or wings on wet flies )
Calf tail hair is an essential material for tying split-wing dry flies such as Wulffs, bonefish fly patterns, and smaller trout flies requiring finer, more crinkly hair than bucktail.