change out of

change out of something

to take off a set of clothing and put on another. I have to change out of these wet clothes. You should change out of your casual clothes and put on something more formal for dinner.
See also: change, of, out

change out of

v.
To take off some clothing and put on other clothing: You should change out of those wet clothes before you catch a cold!
See also: change, of, out