And nobody wondered why, after all, Sisadmins walk in sweaters? That’s fucking comfortable! Try in a suit, trousers with arrows, and, God put it! in a tie to go under the table to the system, dig into the server room, stretch the screw... Comfortable? No is! And in a sweater and jeans this ppc as convenient - nothing interferes, and complete freedom in movements. He went home, washed, and all the things. The costume is more difficult, you don't wash, especially the cushion.
So don’t hunt here for the fact that Sisadmines walk in sweaters and jeans. This is a Spectre!