Shirts are typically described as a garment or a piece of clothing for the upper half of the human body. It would ideally consist of sleeves and a collar. Men's shirts will usually have buttons down the front, and uniforms of all types generally follow the same pattern.

Shirts are worn in both casual and formal environments. The way it is worn is a good indication of the type of work a person is doing or the person's current status. In a business meeting, the shirt would be tucked in and teamed with a tie and suit, but if the person is on vacation, then it would most likely be left untucked with a few top buttons open.

Shirts are further sub-divided into various types, and their styles, over a period of time, have generally been governed by some unseen fashion code, as well as the prevailing weather conditions of a given place. In colder climes one finds long sleeved shirts made of thick, warm material, and in warmer climes half-sleeved shirts are common.

T-shirts look like the alphabet letter "T" and are named accordingly. They are made from different kinds of materials.

Various sporting events have given rise to shirts of a particular type and been named for the sport. Examples include the rugby shirt, the golf shirt, and the baseball shirt. However, a polo shirt has no connection with the game itself.

For ladies, the term shirt is a loosely used one where the definition would include tank tops, camisoles, blouses, tube tops, and halter tops, all of which conform to the basic design of a shirt but with a few modifications. There are some specific types which are self-descriptive like nightshirts, Hawaiian shirts or sweatshirts.

Shirts come in such a wide variety with different buttons, zippers, sleeve lengths and cuffs, collars, lengths, and pockets. The list is endless, so it's up to you to choose.