Shirtworks is an Oak Park institution. Every kid who has gone through the local high schools knows that Shirtworks is the place to go to get sports team t-shirts and jackets. They also sell, personalize, and sew on varsity letters for letterman's jackets. You can even get personalized t-shirts from pre-made designs without having to order a minimum amount. 1 shirt, 5 shirts, or 10 shirts are ok.