It occurred to us that no one who works outside of the fashion world would have any idea wtf an "American flag yoke windbreaker" is. Personally, I had only ever heard of an egg yolk, which is apparently different from this here yoke we're discussing.
According to Wikipedia, "A yoke is a shaped pattern piece which forms part of a garment, usually fitting around the neck and shoulders, or around the hips to provide support for looser parts of the garment, such as a gathered skirt or the body of a shirt."
So there you have it, folks. The yoke keeps this puppy form fitting around the shoulders, so you can bloat out with your beer gut around the waist! Sounds fantastic to me!