Of course a little explanation to those Non USMC types might be in order...
The cover worn now (whether it be green or white) is one that is taken apart to be stowed in the seabag etc...
It may look similar to the other services hats but theirs are not able to be taken apart for storage or even for change of the actual cloth cover.
You only need one bill / frame assembly and you can have multiple cloth covers of varying colors (I remember having different ones back in 73 - Khaki, tropical, green wool and green polyester along with white).
The Dan Daily style was probably replaced with the new style because it might not have been as easy to make it compact for storage (those that have posted here that own them might either be able to confirm or make this statement moot.)
That is the opinion and information I have to share in this discussion.
Ted...