A polo shirt, also known as a golf shirt and tennis shirt, is a form of shirt with a collar, a placket with typically two or three buttons, and an optional pocket.
All three terms may be used interchangeably. Polo shirts are usually made of knitted cloth (rather than woven cloth),
Golf shirts are commonly made out of polyester, cotton and polyester blends, or mercerized cotton. The placket typically holds three or four buttons, and consequently extends lower than the typical polo neckline. The collar is typically fabricated using a stitched double-layer of the same fabric used to make the shirt, in contrast to a polo shirt collar, which is usually one-ply ribbed knit cotton. Golf shirts often have a pocket on the left side, to hold a scorepad and pencil, and may not bear a logo there. It’s popular to be used as corporate uniforms,event uniforms,club wear or promotional gift to clients.
A dress-length version of the shirt is called a polo dress.