Shirt style is an important part of fashion and personal style. There are four common shirt styles: POLO, TEE, v-neck, and tank top. POLO shirts are collared shirts with a button-down placket and usually have short sleeves. TEE shirts are casual shirts with a round neckline and short or long sleeves. V-neck shirts have a deep V-shaped neckline that can be worn for both casual and formal occasions. Tank tops are sleeveless shirts with a wide neckline and usually have a tight fit.