Which is the rarest z-flex animal series cruiser?

The rarest Z-Flex Animal Series cruiser is the "Z-Flex Animal Series Mike Vallely Signature Model." This limited-edition cruiser features unique graphics and design elements that celebrate the iconic skateboarder Mike Vallely. Due to its limited production and nostalgic value among collectors, it has become highly sought after, making it one of the rarest finds in the Z-Flex lineup.