Though different textile colors and patterns changed from year to year, the cut of a gentleman's coat and the length of his waistcoat, or the pattern to which a lady's dress was cut, changed more slowly. Men's fashions were largely derived from military models, and changes in a European male silhouette were galvanized in theaters of European war where gentleman officers had opportunities to make notes of foreign styles such as the "Steinkirk" cravat or necktie.
Suggestions for “Gatsby” Make it punchier by shortening the post title. Also, I don't really know what “Drops” means, guessing it's another word for songs and I'm just old. Looking at this post I see a great opportunity to add in a number. It's good to be clever, but you don't want your readers Googling your post title just to find out what you mean. “Hear Now: 14 Songs from the Great Gatsby Soundtrack” might be a better fit.
fashion, style, and fad mean the way that up-to-date people do things. fashion is used of any custom (as a way of dressing or behaving) that is widely accepted at any one time or place. It was once the fashion for everyone to wear hats. style may suggest a fashion that is approved of by people with taste. The house was decorated in the latest style. fad is used for something that is very popular and often only for a short time. Beach tennis may be just a fad.