'Big Bang Theory' behind the scenes: Sheldon's taste in T-shirts explained -- VIDEO

We know that Sheldon Cooper isn’t crazy (his mother had him tested) but he is maddeningly particular about, well, everything. Costume designer Mary T. Quigley explained the logic behind Sheldon’s sartorial choices when she gave EW’s own Adam Vary a guided tour of the Big Bang wardrobe closet.

“I try to get into Sheldon’s mind a little bit,” Quigley said. “I don’t believe that he has a closet the size of a mansion. Even though he has a collection of T-shirts and specific things that he will wear and what he won’t wear, I like to repeat them.”

When she does decide to add a new T to Sheldon’s wardrobe, where does Quigley shop? And why does Sheldon only own one pair of shoes?

Watch the video below to find out.

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