Unicorn Ultrafly.100 Mythos PLUS feathers: 68944 Durable and visually effective, metallic polyester feathers. 100 micron ultra thin material. ULTRAFLY - A new series of specially designed Unicorn feathers. Using the most modern materials and manufacturing processes, the most visually stunning and durable feathers have been created. ULTRAFLY - Provides exceptional accuracy as you aim for a winning double. - The most modern materials - Visually stunning - Durable Unicorn feather designs are unique and only available at Unicorn. Color: navy