Want something super special? Upgrade your order to our luxe double-thick cardstock for your invitations and response cards. For just 50 cents more per card you get the feel of true couture. Choose the number of cards you want to upgrade and add to your cart. PLEASE NOTE: These are available for 5" x 7" and 5-1/2" x 4-1/4" cards only. You can have any item (such as menus and programs) reformatted for these sizes.