The pattern eliminates a pleat in the back under the yoke by using side seam panels. This also gives the shirt more of a contoured look. I suppose that's OK if one doesn't have a small pot belly due to a lack of bike riding all this miserable winter. There is something I've never seen before on a shirt.
There's an undercollar with button holes and buttons. I made this piece in a contrasting white satin. After all, who cares? Well, now that my shirt is out of the way, I can focus more on The Three Musketeers. Ta!