The Grand Ayatollah Khamenei answered a question about wearing clothes with printed words and pictures which promotes western culture.
Question: Is it allowed to wear clothes with foreign (western) printed words and pictures, and are these clothes considered as promoting western culture?
The Grand Ayatollah Khamenei: If they do not cause social corruption, there is no problem wearing them, and whether promoting western culture is considered against Islamic culture or not, depends on custom.
source : en.shafaqna.com