He was inspired by the classic Joker look, particularly the playing card motif, and wanted to create something unique and memorable. The shoes are a combination of formal dress shoes with a clown-inspired design, featuring a purple body with green accents and a playing card pattern.
It's interesting to note that Patterson originally wanted the shoes to be a brighter shade of green, but the color ended up being toned down slightly.
These shoes have become as iconic as the Joker's makeup and laugh, representing the character's unsettling blend of chaos and elegance.