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 around the waist! Sounds fantastic to me!