Fly Materials Partridge 2-Piece Set ① Partridge Dyed Olive ② Partridge Brown Back These feathers are a type generally called "partridge back" and are very popular as materials for fly tying. Uses: Suitable for expressing soft movement underwater, such as the hackle (feather-like decoration) of wet flies and the legs of nymphs (imitations of aquatic insect larvae). Features: Characterized by a natural brown color and soft, spreading fibers with black and white stripes. Thank you.