The Nine Line Sig Sauer USA Flag Short Sleeve Shirt in black and size XL is a t-shirt produced by Nine Line Apparel. Brand: Nine Line Apparel is the manufacturer of this shirt. They are known for creating patriotic and military-inspired apparel. Sig Sauer: Sig Sauer is a well-known firearms manufacturer, and this shirt features their branding or logo. USA Flag: The shirt incorporates the design of the United States flag, often as a symbol of patriotism or support for the country. Short Sleeve: The shirt has short sleeves, making it suitable for warmer weather or casual wear. Black: The color mentioned refers to the shirt's primary color. In this case, the shirt is black, which is a versatile and widely-used color option. XL: The size XL indicates that the shirt is extra-large in size, typically providing a looser and more relaxed fit.