Men traveling in Federal Iraq should wear long trousers such as lightweight cotton chinos, linen pants, or jeans, paired with plain t-shirts, polo shirts, or button-down shirts that cover the shoulders. Shorts and sleeveless tank tops are culturally discouraged on public streets in Baghdad, Mosul, and Basra, and can draw unwanted attention or issues at checkpoints. For more: What to Wear in Iraq: Dress Code Guide for Men, Women, and Shrines