This style of clothes originated from polo in modern Europe, and was first designed and applied to polo by French designer and polo enthusiast/athlete lacoste. Later, American designer Ralph Lauren improved it, named it Polo shirt, and applied for a registered trademark.
So now in a broad sense, POLO refers to this collared short-sleeved T-shirt; In a narrow sense, when it comes to Polo, people will only think of Ralph Lauren's POLO brand clothes. Of course, Polo shirts are also his fist products. It is no exaggeration to say that on five continents, from presidents, prime ministers, heads of state to ordinary white-collar workers, you will see this Polo shirt with the polo logo.