PREDATOR FLY BOX C81Predator Fly Box C81 The Predator Fly Box C81 is a medium sized, double sided fly box built for anglers who need dependable storage with increased capacity. Featuring ripple foam on both sides, it provides excellent fly retention, ensuring your flies remain secure, organized, and protected during transport and use. With its slightly larger profile, the C81 offers additional storage space for a wider selection of flies while still remaining practical