When you have the New Phase Double-Sided Large Waterproof Fly Box at your disposal, you can take a veritable boatload of little nymphs or mix it up with some streamers and dry flies. The box itself is made from ABS plastic, which should endure being thrown in frustration or crushed beneath your slightly stinky waders. The slit foam liner keeps your flies in line, and the rubber gasket saves them from getting swept away if you accidentally drop the box while the lid is open. Stainless steel hinge pins keep this box opening and closing for years to come.