Fashionable a. : Conforming to the fashion or established mode; according with the prevailing form or style; as, a fashionable dress.

Fashionable a. : Established or favored by custom or use; current; prevailing at a particular time; as, the fashionable philosophy; fashionable opinions.

Fashionable a. : Observant of the fashion or customary mode; dressing or behaving according to the prevailing fashion; as, a fashionable man.

Fashionable a. : Genteel; well-bred; as, fashionable society.

Fashionable n. : A person who conforms to the fashions; -- used chiefly in the plural.

Example:
What are the most Fashionable, good quality boots?

Taxonomy
fashion, clothing, costume, clothing fashions, styles, magazines, clothing styles, fashion magazines, free encyclopedia, fashion designers, fashion weeks, textiles, pace, dressing, WIPO, given time, Intellectual property, Fernand Braudel.

Defination from the web:
... Retro fashion allows rule shifts, such as 'old is suddenly new,' thus fashionable. ...