As soon as I started reading the article, this is the one that popped into my head too. For SOME reason I actually bought the replica of this hideous jersey when I was a kid. Then again, I had the Cubs too, so cleary I was insane.
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1. 1976 Chicago White Sox-Shorts Alternate
First off, we'll cover the horrendous color scheme. They were very bland with plain lettering, and a giant blac collar over a white uniform was disastrous. And there "white sox" looked like something an old lady would wear. But to really consider the reason why these are the worst uniforms ever, one word: shorts. Yes, for one game, the White Sox wore shorts. And these were not baggy NBA shorts or short baggy old school shorts, they were more like short capris. I have no idea how anyone could ever think this was a good idea, but it was not a shock when they were scrapped after just one game.