What happened to Ann cream long sleeved shirt?

Something i have been asking myself for a while is what happened to her shirt?, in the film she was using a long sleeved 衬衫 over her 粉, 粉色 sleveeless one, but when kong is attacked 由 the bats, her 衬衫 is gone, what happened to it? did the bats tore it off her, did it fell off her 或者 something?