Negroni is a classic, slightly-retro button-up shirt, with a more modern cut. The instructions will guide you through every step of creating a well-crafted casual shirt: felled seams, a lined back yoke, and sleeve plackets on the long-sleeve version.
Subtle details include a convertible collar (also known as a "camp collar") and midcentury style collar loop detail. Version 1 has long sleeves finished with a placket and cuff. Version 2 has short sleeves.