American traditional shoulder cap tattoos have been around for centuries, and they are still popular today. The shoulder cap tattoo is typically a bold, black and grey design that is usually made up of a simple shape, often incorporating symbols, animals, and other designs. The shoulder cap is usually placed on the shoulder blade and is usually framed by a decorative border. The shoulder cap tattoo is a classic tattoo design that has been around for centuries and is still popular today. While the shoulder cap is typically a bold, black and grey design, the meaning of the tattoo varies from person to person and can be deeply personal.