The word(s) "coats" appears 2 time(s) in 2 verse(s) in Quran in Saheeh International translation.

(1) And We taught him the fashioning of coats of armor to protect you from your [enemy in] battle. So will you then be grateful?

(سورة الأنبياء, Al-Anbiyaa, Chapter #21, Verse #80)
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(2) [Commanding him], "Make full coats of mail and calculate [precisely] the links, and work [all of you] righteousness. Indeed I, of what you do, am Seeing."

(سورة سبإ, Saba, Chapter #34, Verse #11)
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