A design, shape, or type of apparel item distinguished by the particular characteristics that make it unique.

Answer: Style.

Explanation:

Style refers to a specific design, shape, or type of garment characterized by distinct features that makes it unique.

Fashion is the predominant style at a given time, meaning that fashion continuously changes throughout the different seasons, or from one year to the next. A classic style is the one that remains popular over an extended time, virtually unaffected by the changes in fashion. On the other hand, a fad would be a temporary style, which attracts many people for a short period.