As I mentioned in an earlier post, people in China (especially women) have an aversion to the sun. They will go to any length to prevent the sun’s rays from touching their skin. These ultimate visors are the lastest fad. We call them Darth Vader Hats. And they’re especially effective when accessorized with the "batman wings" over the arms. 
This lady, perhaps, can’t afford the visor, so she settles for the black scarf around the face. Look at this photo too long and you’re bound to have nightmares!