club de regatas vasco da gama maintains an official webpage on this link, an on-line store here, and can be contacted via email form on this link - fluminense football club maintains an official webpage on this link, an on-line store here, and can be contacted via email on this link, via the contacts on this page or via phone at 21 3179.7433 / 3179.7434.  

sports shops like centauro, which are dedicated to sporting goods, also offer merchandsie from these and other official team, including jerseys from the federal brazilian team - popular internaitonal brands like adidas and nike can also be found in various locations, offering official team gear, from represented teams.