Suggestion: This post is both descriptive and vague. It tells me I will be accessing secret information about “racing fashion” but I don't know what “racing fashion” is right off the bat. A quick Google search informed me of two things… Racing Fashion is what you wear to horse races, and that it's not what my middle-class family wears to go bet on the horses. I'm so embarrassed.
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.