Response from Vistaprint Customer Care Team:
Thanks for taking the time to share your feedback. We're happy the material of the T-shirts is nice, however, we're sorry for the disappointment with the sizes received. It was not our intention to disappoint you, and we'll be sure to have your feedback passed on for review. We can issue a credit or refund for the shirts ordered for your dissatisfaction. Please reply and let us know your preference. If you'd like, you can try a different brand of shirt and see if the sizes fit better. https://www.vistaprint.com/clothing-bags/t-shirts.