"그는 치마를 입어요."
Translation:He wears a skirt.
all this gender nonsense spam aside, if anyone is wondering how to say a sentence like "he does something while wearing a skirt", you use 차림으로
그는 치마 차림으로 길에서 달려요 he runs in the road wearing a skirt.
그들은 한복 차림으로 식사를 해요 they dine wearing hanboks
학교를 교복 차림으로 다녀야 해요 you have to attend school in your uniform