1) A nail on the wall, with the suit hanging from it.Timo - what alternate mechanisms are you talking about?
After all, the Breen seemed to be present in some force. If their suits are just for camouflage and don't serve a "practical" function, they are likely to be taken off rather often. There would also be spares around.
2) A costume prepared using standard technologies available to the average 24th century citizen of Cardassia - or at least to an insurgent willing to do what the average citizen dare not.
After all, replicators are around every corner in TNG...
Neither of those covers the wearer - they leave the head and the limb extremities quite exposed. The Breen suit is a rare exception to that, possibly for a reason.Stun phasers could not be stopped by any body armor seen in trek (except for the borg one) - not klingon armor, not cardasian armor. Why should the breen armor be any different? - their tech level is ~the same.
But that makes very little sense. If it is known that the Breen evaporate, then speculating "what they look like" is just plain silly, as one should instead be quoting the pertinent fact of evaporation! Essentially, a Breen would look like "evaporating"... And the speculation would begin with this, and only then tackle other things, such as what the Breen looks before evaporation specifically.And if Ezri and Worf don't know how a breen looks like, they will, of course, speculate about it - fur and beyond
(How likely would it be that something as conventional as a furry humanoid would evaporate at exposure anyway? Ezri should have been talking about walking icicles or something.)
The whole bit about "never seen and lived to tell" would be nonsensical, since Kira would have come back alive with the knowledge that the Breen evaporate. The "live to tell" angle would have no bearing whatsoever on one's ability to report the true Breen apperance, then: even an immortal and invincible observer would come back empty-handed, because the obstacle would be the evaporation aspect.
Timo Saloniemi