... Mine I think are Universe pads, with the strip that makes a circle inside? The Verite and the Be2 are flat and fat, and the Atrium and Eikon are skinnier and deeper? U's are a median? ...
So, leather on the outside and inside, with a suede ring touching the side of your head/face? Those are some Hybrid pads -- could be Auteur or Universe hybrids, so you'll need to measure them to tell which, although the differences are so small that I think you'll struggle. There are also differences in the perforation patterns, which might help.
BTW, there are no 'Atrium' pads. 'Stock' pads for Atrium are the Universe -- you're probably referring to the Auteur pads.
...Really need to mark these I get them all mixed up. I don't care what they're called except if I want to order replacements.
I now have labeled plastic bags to put each set in when I swap pads.
Definitely one of the biggest pet peeves re: ZMF stuff -- lots of folks complaining about 'no labelling' or asking 'which is which'. Zach has responded that there's no simple way to fix the problem without affecting the sound of the pads.
Exact dimensions of all the pads are listed on the pad pages on
ZMF shopping page for pads. You can use that info to identify your pads in a pinch, assuming you can measure very accurately. But in some cases it's pretty tough. Easy to tell Eikon from Auteur -- Eikon ear cavity is 7mm (51mm vs 58mm) narrower. On the other hand, Universe vs Auteur are very close:
Ear cavity: Auteur 75 x 58mm Universe 71 x 56mm
Tallest height: Auteur 25.4mm Universe 25mm
Shortest height: Auteur 19.05mm Universe 20mm
Much easier if you have two sets to compare vs only having one and trying to figure out which measurements are closest.
I think there's an image/chart which lists them all in one place -- sorry to say I couldn't find it here or on the ZMF site.