This is an officially licensed Mr. Rogers product.
T-shirt features an image of Mr. Rogers and says "Won't U B My FB Friend?"
Sheer t-shirts are made of a soft material and are slimmer fitting than your average t-shirt. Sheer t-shirts are generally made of a cotton/polyester blend, but may also be 100% cotton. The shirts are not see-through nor is there any loss of quality.