The Treachery of T-Shirts (La trahison des maillots, sometimes translated as The Treason of T-Shirts) is a t-shirt designed in the style of the Belgian painter René Magritte. The picture shows a t-shirt. Below it, is written, “Ceci n’est pas un maillot”, French for “This is not a t-shirt.” The t-shirt is not a t-shirt, but rather an image of a t-shirt, which was Magritte’s point (see the original wikipedia article).
Many thanks to Anna Olofsson for the original vector design of the shirt outline and text.
Warning: this design does not look good on the “girly style” t-shirt, due to the way that RedBubble resizes it to fit the shirt. I recommend using one of the unisex shirt types, for best results.