Wardrobe-System. What do you think?

[Felis]

would hurt market and dungeon runs

But what i want is something like a catalogue, where every dungeon gear, that you once owned, is listed to try on (also with info where it drop).
Something like the fishing log, but with gear.

The reason for this is that it is no problem to try on crafted gear without owning that gear (thanks to crafting log and market board). But to try on dungeon gears that you don't own, you have to examine other players or have to wait until it drop.