I can't seem to connect the diagrams with my physical reality. I measured a tee I got, size Small, to be about 57,2 cm, or 22,5 in. long, yet on the size chart it says 27,5 in!

That's a lot of millimeters!

I have been told there is a blog on Threadless that has a link to a place where all the little pics of shirts are available.

Like the one "joshpowell" has under "All about me".