Prophet S.A.W said:

“Whoever wears a garment of fame and vanity, Allaah will clothe him in a garment of humiliation on the Day of Resurrection.”

Narrated by Ibn Majaah (3606); classed as hasan by Shaykh al-Albaani in Saheeh Ibn Majaah. 

Fame and vanity in clothing means wearing something that is extraordinarily expensive or extraordinarily ragged.