From Colette:
"For men that like a classic, slightly retro shirt with a more modern cut, this shirt pattern is just the thing. The instructions will guide you gently 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.
This shirt can be made in a variety of fabrics, such as crisp shirting, warm flannel for winter, or cool rayon for summer. Check out the pattern info for more details and suggested fabrics.
Version 1 has long sleeves finished with a placket and cuff. Version 2 has short sleeves."