Fashion is a form of expression. Fashion is what people wear in a specific context. If a stranger would appear in this setting, adorning something different, the stranger would be considered “out of fashion.”

This one is even less noticeable to the general public, but is similar to the collar gap in being difficult to diagnose. It occurs when you have your arms at your sides (in the “natural resting position”) and can see dimples (or “divots”) just above the biceps on your suit jacket sleeves.