A tennis shirt, now commonly called a Mens Surf polo shirt or a Mens Surf Woven and also known as a golf shirt, is a T-shaped shirt with a collar, typically two or three buttons down a slit below the collar, two small slits on the bottom of either side, and an optional pocket. A zipper may substitute for buttons, or neither may be present. Mens Surf Polo And Mens Surf Wovens shirts are usually made of knitted cloth (rather than woven cloth), usually pique cotton or, less commonly, silk, merino wool, or synthetic fibers.