An annoying piece of bad cc

I gave up ranting about my sims wearing strange cc clothes when going into the shower, but right now I caught me a shirt that is really annoying;

it looks like a piece of maternal clothes ( short sleeve shirt above long sleeve shirt ) and showes up on sims of all ages and genders.

I tried to find it on the "installed objects" list in my launcher... but could not identify it yet.

Does anyone here know what it is called there, so that I can FINALLY remove it?!