Thank you for sharing your feedback. We’re glad to hear the shirts fit well and look good overall, but we’re sorry to hear about the concerns with breathability and stitching. To help us review the matter more closely and assist you further, could you please share images of the affected shirts showing the concerns you mentioned? If your request is urgent and you need an immediate solution, please reach out to our Customer Support team via https://www.vistaprint.com/customer-care/help-center/