Free Vector Graphics Commercial Use
Of course, you must check the license for every image you use. Websites that offer free anything will ALWAYS also have images for sale for images for sale as an affiliate. It is up to YOU to protect yourself and make sure you are not violating copyright. When in doubt, use common sense. With that being said, we have a list of free Vector Graphics for Commercial Use.
The following is a list of places to purchase stock images for t-shirt designs: