In short, the dress code is “you have to.”

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“If you think you look hot, you wear it,” Maddon said at the time, smiling. “I’ve always rallied against the fact that (the) previous generation really frowns upon non-collared shirts, which I’ve never understood. They’ve always been in favor of the collared shirt and that being more acceptable than the non-collared shirt. I’ve never understood that logic when it comes down to dress.

“The $5,000 suit on the airplane ride makes no sense to me.”

So, no telling what some of the suits cost that the Cubs (17-6) wore Sunday for their flight to Pittsburgh, where they’ll face the second-place Pirates (15-0).

But this is abundantly clear: They thought they looked hot.

And they wore it.