The dp studio series of technical files provides an extra working tool to facilitate assembly in garment making. Each file has precise written explanations and detailed sketches to demonstrate the working method step by step, in compliance with a predefined size chosen by the user and leading to a top-of-the-range result. You can learn how to create an open blouse collar (collar that cannot button right up to the top of the neckline) from the neckline of the classical blouse base pattern (or any other neckline). This collar remains open and lays flat, revealing a little skin. Using this base, other transformations are possible. Complete your work by also using the following files: The technical file of the classical blouse base pattern The technical file of the blouse sleeve base pattern The technical file of the simplified blouse sleeve.