I think the shirts are knock offs. I have bout the same T-shirts from Hanes and the fabric feels different in these t-shirts that i just bough from a third-party seller. These are supposed to be 100% cotton t-shirts but the ones I just received are more lightweight and feel like they have polyester in them. One shirt shrank to 1/2 size after the first washing. The other shrank too but not as much, but they are still snug. There was no return slip in the package either.

Avoid this seller. Next time I'm getting them directly from Hanes.