The verb "to wear" in Spanish can be. "llevar puesto", "vestir", "traer puesto" "they are wearing" in Spanish means "ellos llevan puesto", "ellos visten", "ellos llevan puesto" or "ellos traen puesto". "what are you going to wear?" means "¿qué vas a llevar puesto?", "¿qué te vas a poner?" or "¿qué vas a vestir?". I hope it useful.

Hello, I am not the master of English-Spanish translation but I would like to make my humble contribution They are wearing: Ellos/ellas visten... Ellos/ellas llevan (puesto)... What are you going to wear? ¿Qué te vas a poner? ¿Con qué te vas a vestir? Regarding "vestir" and "llevar" you could say: "ella viste jeans" or "ella lleva jeans" but "ponerse" is to put on clothes, so, you could say "ella se puso (simple past) jeans" Hope this is helpful :)

Hi there, They are wearing= Ellos/as llevan (puesto) What are you going to wear?=¿Qué te vas a poner?¿Qué vas a llevar (puesto)?/¿Qué os váis a poner? ¿Qué váis a llevar (puesto)? Hope it helps!

they are wearing = Estan vistiendo o Estan usando what are you going to wear? = Que vas a ponerte?