This is an officially licensed Nintendo product.
This shirt features Mario in the Tanooki suit from Super Mario Brothers 3.This suit was exactly the same as the flying raccoon Mario, except you could turn to stone- a somewhat useless feature in an otherwise great game.
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.