Show off the love your team in casual style with officially licensed A's Plus Sizes shirts for every major A's fan at MLB Shop. Shop a variety of Oakland Athletics tees that display your team spirit, including A's short-sleeved t-shirts, long-sleeved shirts and more for any time of year. MLB Shop has the best A's shirt for you as we carry a great selection of sizes and styles so you’re comfortable on game day and throughout the season. Browse the best brands to find the perfect Oakland Athletics t-shirt. Customize your look with A's player name and number tees so you can show your support for your favorite player at the next game. Check back for new arrivals of Oakland Athletics t-shirts and more so you’re ready for every major event all season long.