Why Do We Call Them T-shirts?

The T-shirt is one of the most common clothing items in the world, yet many people never stop to wonder how it got its name. Surprisingly, the explanation is very simple. A T-shirt is called a “T-shirt” because of its shape. When the garment is laid flat on a surface, the body forms a vertical line while the sleeves stretch outward horizontally, creating the outline of the capital letter “T.” This simple design eventually inspired the name that people still use today.

The history of the T-shirt dates back to the early 1900s. At that time, similar shirts were mainly used as undershirts rather than everyday outerwear. The United States Navy issued lightweight cotton crew-neck shirts to sailors because they were comfortable, breathable, and easy to clean. These shirts were worn underneath uniforms and were not considered appropriate to wear publicly by themselves.