This G-Dragon fan art contains
well dressed person, suit, pants suit, pantsuit, fedora, felt hat, homburg, stetson, trilby, and business suit.
There might also be
boater, leghorn, panama, panama hat, sailor, skimmer, straw hat, dress hat, high hat, opera hat, silk hat, stovepipe, top hat, topper, beaver, suit, and suit of clothes.