Waterproof compartment boxes are a necessity and we now offer two sizes in the Waterproof Bug Locker lineup. The Medium fits plenty of flies and is at home in a boat bag or your Steamboat Sling Bag. Fully adjustable to accommodate big dries or articulated streamers. Durable and shatterproof case in both a freshwater and saltwater color – built with our 3-D molded high-grip FlyTrap closure.