I have made these using heat transfer vinyl. Looks great. The white vinyl ended up being see-thru a bit, but it looked fine! The heat made the print from the shirt run onto the transfer paper, but it was not an issue.
These are excellent quality. Not as silky as cheaper polyester and the pocket stitching and mesh hood are nice additions. They are soft inside. These have been a huge seller and are especially popular with the guys.
I really liked these Tee,s Super soft. I have bought them before and plan on making another order soon. This time with winter just around the corner I will be buying a heavier Tee. I have some of the heavier T,s already and like them just as much.