I have a confession to make ....I gave back my uniform, I had two polo shirts, one had been washed but the other I didnt
I just wore it once for 4 hours though it couldnt have been that bad and I aired it
I dont think they give them to the next workers anyway they probably dump them or cut them up to use as rags.
They are the kind of uniform made from that polycotton jersey fabric that if you wash too much it fades, plus its black and attracts white fuzz if you put it in with whites
also it had printed on it tiny logos for facebook, youtube and twitter despite the company never using those platforms.