I was a little disappointed with the quality of the T-shirts and sweatshirt. I bought a sweatshirt, and already the zipper doesn't work well. The T-shirts are kind of see-through thin. Also, the gray T-shirt shown in the above picture is very, very, very small -- an XL is more like medium, and they don't have anything larger.
The last several tours, the T-shirts were heavier cotton and quite nice. Mine are still in good shape after many wearings/washings.