Marlston
Those are great shirts, and I still have one. I know there were numerous makers, but on the shirt I have, which must be at least a dozen years old, picked up on a distant visit to the old school, I am just barely able to make out the faded tag, which reads "Marlston" as the brand. It's also a heavier fabric than a normal t-shirt; somewhere between a t-shirt and a jersey. I hope this helps.
Those are great shirts, and I still have one. I know there were numerous makers, but on the shirt I have, which must be at least a dozen years old, picked up on a distant visit to the old school, I am just barely able to make out the faded tag, which reads "Marlston" as the brand. It's also a heavier fabric than a normal t-shirt; somewhere between a t-shirt and a jersey. I hope this helps.