In Korea, Western languages are considered fashionable, so it is easy to find shirts with (often random) English and French expressions on them. Counterintuitively, it is nearly impossible to find clothing in Korea with Hangul (Korean alphabet) written on them.
Recently, a company called SarangShirts started selling items with Korean slang, proverbs, and drama expressions in Hangul. It is aimed at English-speakers who are familiar with Korean. The clothes and bags are shipped internationally.