The first week of a semester is a fashion decision with no rules, which is why a jersey works. It signals affiliation without requiring anyone to guess, and it survives a walk across campus and a two-hour lecture hall.
Pick something you can sit in. A buy byu cougars jersey with a relaxed cut does not bunch at the waist during a lecture, and a Custom BYU Cougars Jersey in a fitted cut looks better standing but starts to bind by the third class.
Campus weather changes between an eight in the morning class and a two in the afternoon one. A jersey that works over a tee at noon also works over a long sleeve at eight, and a light layer in a backpack covers the gap without another trip to the dorm.
Pair it with a bag you already own. A Bear Bachmeier BYU Cougars Jersey over a tee plus a backpack reads as a student, and a LJ Martin BYU Cougars Jersey with a jacket on top reads as someone who checked the forecast.
Use the jersey on a game week, not the first day of syllabus week. A Jojo Phillips BYU Cougars Jersey printed on the Monday before a home game gets the right attention, and the Kyler Kasper BYU Cougars Jersey on a random Tuesday gets a question about whether there is a game nobody knew about.
Keep one neutral piece in the rotation. A Legend Glasker BYU Cougars Jersey with a plain crew neck underneath is the version that works for a study group, a office hour and a bus ride home without needing a change. Wash it on the weekend, not the night before class. A jersey that goes into a machine at eleven at night stays damp until morning, and a damp piece worn to an eight o'clock lecture smells like the laundry room by noon. Hang it where air moves rather than in a closed closet, and two jerseys in rotation solve the whole problem.