I have been using Noah's Ark for school projects for years - always a favorite family program! And we always get the tees. I have noticed that the tees we bought this year were much thinner - the white ones from our last project actually didn't look very good because they weren't opaque enough. The blue ones were a little better, but compared to the blue tees we got for this project a year or two ago, they are flimsier and don't look as good. But overall we love having tee shirts available; we use transfer paper to put logos and project-specific designs on for children to color, as well as our school logo. It makes the project feel complete.