Dictionary / Vocabulary / 裏返す
うらがえす
to turn inside out; to turn the other way; to turn (something) over
JLPT N2 common word
彼は肌着を裏返しに着た。
He put on his undershirt inside out.
彼は靴下を裏返しに履いていた。
He had his socks on inside out.
彼は靴下の片方を裏返しにはいていた。
He had one of his socks on inside out.