The name "T-shirt" comes from the shape of T letter. It appeared in the US Navy in United States in the 19th century, and was adopted for military training, unlike from original uniform because it was easier to maintain. And would have been inspired by the base of the French mariners with the white and blue stripes of 1858, like the outfits of the sailors of the French navy.
On this T-shirt, we used a print on the back of a flying tiger.
This is the nickname Flying tiger given to a squadron of American pilots in 1938 went in to history during World War II. The nickname comes from a drawing on the nose of his plane by one of the pilots, which depicts the gaping mouth of a shark that would later take the shape of the tiger that gave the squadron.