Shop for Oakland Athletics Polo Shirts at lids.com to wear to the next Baseball game or out with friends. Rock a Oakland Athletics polo shirt or polo t-shirt to show your fan pride! Browse tons of styles like Oakland Athletics long sleeve polo shirts or lightweight polos. Sports fan polo shirts repping your favorite Baseball team are great for casual Friday's at the office when you need a nicer dress polo shirt. Or dress down with jeans and a polo tee shirt featuring your Oakland Athletics team mascot.