Iranian police have warned shopkeepers not to display female mannequins without a hijab, or showing bodily curves, Irna news agency reports.
Display of bow ties and neckties, and the sale of women’s underwear by men are also banned, the police said.
The move is part of a crackdown on Western influences and enforcement of dress codes in recent years.
“Un-Islamic behaviour” has been targeted since President Mahmoud Ahmadinejad’s first election in 2005.