We print on all kinds of shirts! You can learn more about fabric, weight, cut and fit by going to their product page and clicking on 'Learn More' Under our Material Info section:
That link will bring you to our handy T-Shirts Info-graph! You'll be able to click on each style at the top to see details. Check out the example below for Classic Tees:
You can also check out our size charts at www.teepublic.com/sizechart for more detailed measurements and visual aids.