On-trend
In fashion
Dress up
dress down
Dress code
Over dressed
Under dressed
Follow fashion
fashion statement
Fashionable or popular at a particular time
A set of rules about what to wear to a specific event or in a specific place
not wearing clothes that are formal enough
To wear clothes that are more formal than usual
Fashionable, trendy
to be fashionable in a daring way
Wearing clothes that are too formal for the situation
To be interested in clothes and fashion trends
to wear clothes that are more informal than usual