BURDA Sewing Pattern 6423 is an envelope sewing pattern for making a strap dress, suited to home sewers who want a project they can customize. It includes a heart-neckline, panel-seam underdress plus an optional lace overdress with sleeves, giving you options for summer events and special occasions. Before cutting, read the instructions in full, take accurate body measurements, and transfer markings so pieces stay aligned during assembly.