T-Shirts are pictures displayed on the front torso of a character exclusively. They are simple to make, but aren't anyway near as useful as Shirts as they can only cover a small part of the body. T-shirts, however, can sometimes combo well with shirts or work on their own and are quite easy to make - so they're useful in their own merit.

T-shirt Example

One of the various T-Shirts you can buy in the Catalog.