T-shirts were originally worn as under tops, but as time has progressed they have become a bigger appeal and are not regularly worn as one piece of clothing. A T-shirt is usually buttonless, collarless and pocketless, with a round neck and short sleeves. The sleeves of a T-shirt extend at least slightly over the shoulder but not completely over the elbow. T-shirts have many uses and can be created in a large variety of ways, they can include a huge range of colors, size's and style's.