Reply To: Men Shteiging on Shavuos, Wearing Pants

WIY: Without being specific about the topic, I believe the Gemara is Niddah 13a. It says B’feirush that “Michnasayim” are Assur for a man to wear. See the Aruch Hashulchan (in Even Ha’ezer 21, I think, maybe S”K 13) who defines “Michnasayim” based on earlier Poskim in a way that makes a lot more sense than saying that “pants are Assur”.