BananaOoyoo
1000+ Head-Fier
I really like this. Seems to protect the earpieces well
Yeah, you can keep the two earpieces separate, which is particularly nice for IEMs that scratch easily (Campfire, Noble, Sony Z1R, etc.), and it also has a small pouch on top for a silica gel packet.
Van Nuys also should have some interesting options, though I'm not as familiar with their product lineup.
Pelican cases are the way to go if you want pure crush resistance though. (But their products are more generalized and aren't specifically for IEMs or anything.)