Yes that is my own foot. There is an option when ordering to put text or a picture on the back. Painted my foot stepped on white paper. Took a photo and used it when ordering. It is now my 1# shirt.
If it's the tech l/s it should be moisture wicking. All cotton tends to not wick moisture well at all, so they're great for wearing around though not as much for getting a really good sweat in (unless you like that being totally sweaty sort of thing ).
Mike, you can opt to add more to your shirt by customizing it (click the tab under the pic). There you'll find the template for your customized product...add images, rotate, resize image etc...place in front or back (clicking the Arrange drop down box) etc etc. The possibilities are endless, we're your starting canvas
Hope this helps! I"m happy to answer any other questions you might have