Gadot, 32, says it was when she worked out wearing the outfit at the gym, she felt a little comfortable, reported FemaleFirst.
"I couldn't breathe when I first tried the costume on, it was so tight. So I went to the gym, tried it on again and it felt great, a much better fitting," says Gadot.
To the actress' dismay, the designers decided to tighten the costume a bit more but she convinced them eventually that she would need it to be a little roomier during the shooting of the film.