Frank Miller's artwork from The Dark Knight Returns is featured on this Mighty Wallet. The Mighty Wallet was designed by Terrence Kelleman in 2005, and has spawned an entire new genre of wallet made with DuPont Tyvek fabric around the world; folded entirely out of a single sheet it even improves upon a standard leather wallet with its stitch less design. Every Mighty Wallet features 2 large pockets for cash and receipts, 2 credit card pockets that expand to hold lots of cards, 2 quick access business card pockets and 4 writable business cards.