Stand-up collar is a formal style, which refers to some coats, especially jackets with zippers. The width of the collar is only about the same as that of an ordinary collar. Put it on, it stands up, there is no way to turn it down. These are formal clothes that need to be matched with pants and shoes.

Lapel refers to a long collar that can be turned down and has a wide range. The most common one should be a POLO shirt, which is lapel. A POLO shirt is what we often call a collared T-shirt. Of course, you can stand up, but you learn to stand up through struggle. Don't stand up if the landlord doesn't like it. To tell the truth, it doesn't look good like this.