Any piece of headwear (a hat, a baseball cap, a helmet, a maid headdress, etc.) is present in the image, along with someone who could be wearing it, but nobody is wearing the object.
The more specific tags (hat removed, helmet removed, etc.) should be used as well.
The following tags are aliased to this tag: headwear_off (learn more).
The following tags implicate this tag: hat_removed, helmet_removed (learn more).