A short-sleeved casual top, generally made of cotton, having the shape of a T when spread out flat. A T-shirt (or t shirt, or t) is a style of unisex fabric shirt, named after the T shape of the body and sleeves. It is normally associated with short sleeves, a round neckline, known as a crew neck, with no collar.

A short-sleeved casual top, generally made of cotton, having the shape of a T when spread out flat. A T-shirt (or t shirt, or t) is a style of unisex fabric shirt, named after the T shape of the body and sleeves. It is normally associated with short sleeves, a round neckline, known as a crew neck, with no collar.