Funky Mens Underwear Superman/Novelty Boxers?

Superman/Novelty Boxers? - funky mens underwear

I live in Bristol, United Kingdom
I went into town this weekend to buy boxers Superman and other news / Funky mens boxers my friend.
I can not be found!
I did the first deal that came to mind, Topman, no!
H & M? None!
Bank? None!
I tried to save a rock / alternative, so no.
Can anyone help?
XO