Glamour question for the devs

[Zourin]

Both pieces (stat base and appearance projection) need to have a point of overlap in their class requirements.

Seasonal, Special Event, DOL, DOH, and most DOM gear are all generally considered "All Classes" except once you get into the 50's ranges. That means their appearances can be projected on any (higher level) base you want. DRG/LNC gear and GLA/PLD/MAR/WAR gear will remain mutually exclusive to one another, so you can't dress up one as the other with their specialized requirements.

It doesn't work as well the other way around, and you probably wouldn't want to do it that way anyway. In the end, you are always 'wearing' something that you could always wear, but wouldn't feasibly be wearing because it simply didn't have appropriate performance you need for your class at that level.