UV2 Mallard Flank

A classic material that can be used for anything from dry fly wings to emerger legs, Spirit River UV2 Mallard Flank is a material that everyone should keep on hand. These high-quality feathers are from the mallard duck’s flank area and come in a variety of color options, all with excellent barring patterns. Also, with Spirit River’s unique UV2 double-dye process, these feathers display UVF (ultraviolet fluorescence) and UVR (ultraviolet reflectance) wavelengths to increase their attraction to fish. Webby feathers with a variety of different sizes in each bag, Spirit River’s UV2 Mallard Flank Feathers are a versatile addition to everyone’s material collection.

What is UV2 Technology?

It is a double dye process to give all of their UV2 materials and flies added UVF/UVR ultraviolet wavelengths. UV Florescence is used on everything from street signs to fly tying materials. UV Reflectance on the other hand is a spectrum of wavelengths humans cannot visually see; yet it is extremely common in the animal and insect world. UVR allows mayflies to find mates, and bees to find flowers. Fish can see it, and they love it. UV materials and flies are becoming much more popular within the fly-fishing world because of the success they bring while on the water.