Shop for San Francisco 49ers Nike Polo Shirts at lids.com to wear to the next Football game or out with friends. Rock a San Francisco 49ers polo shirt or Nike polo t-shirt to show your fan pride! Browse tons of styles like San Francisco 49ers long sleeve polo shirts or Nike lightweight polos. Sports fan polo shirts repping your favorite Football 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 San Francisco 49ers team mascot.