What stands out is the unbranded fabric, which feels high quality.
Steam Train Ash Grey T-shirt — Crescent Limited Ps-4 Locomotive #1396
The small size feels like a second skin without being uncomfortable.
Steam Engine Train Steam Train Locomotive vintage Train Gift Unisex T-Shirt
What stands out to me is the unbranded nature of this simple cotton tee.
Steam Train Black T-shirt — Crescent Limited Ps-4 Locomotive #1396
A nice touch is that the short sleeves are wide enough to avoid restricting movement.
Big Boy 4014 Steam Locomotive T-Shirt American Railroad Heritage 1941 Train
You will appreciate the unbranded front, which stays smooth under clothes.