A T-shirt (T shirt or tee) is a style of shirt. A T-shirt’s defining characteristic is the T shape made with the body and sleeves. It is normally associated with short sleeves, a round neck line, and no collar. However, it may also include long sleeves, buttons, collars, or v-necks. T-shirts are typically made of cotton fibers (sometimes others), knitted together in a jersey stitch that gives a T-shirt its distinctive soft texture.