Whieldon Fly Fishings This fly box design is hands down the most beautiful and ergonomically functional fly box on the market. It features a transparent face so you can easily see your flys. A rubber seal around the edge and a state of the art locking system ensures that your flies stay dry and out of harm's way all the time. Lastly, this fly box features a bright chartreuse silicone foam, tear away inserts for your flys. Guaranteed to last the test of time, functional, and just straight up elegant. This box is great for nymphs.