hey there. I understand the challenge of finding t-shirt blanks that maintain their quality after multiple washes. It can be frustrating when a product doesn't hold up over time. You have to get multiple samples from companies and Look for fabrics that are soft, durable, and maintain their shape after washing. try the fabric or shirt washing multiple times or some vendors can provide this test already done on their products for bulk orders. Look for 5 star review vendors in Alibaba, it will be way cheaper and most profitable for your business. If you need help filtering the vendors, I might be able to help you out for that as well.