St. Louis (KSDK) -- Wearing your Cardinal red to work or school could go to a good cause.
The St. Louis Cardinals are kicking off the 2013 season by encouraging organizations to host "Wear Red for Kids Days."
The casual dress day allows people to wear their Cardinals apparel if they make a donation to the team's charitable arm Cardinals Care.
This year, the organization that raises the most money by April 30 will receive 100 free tickets to a game. To register go to cardinals.com/red