I?ll vote for the C&F Waterproof boxes. Especially when used in saltwater. In regular boxes your flies will eventually rust from the salt air. Also they float. Last Spring while in Belize and making a fast run in a flats boat, one of my boxes flew out of the boat. We turned around and after about ten minutes of searching, spotted the bright green box floating in the surf. Figure I saved about $60.00 or more in flies.