PIRELLI PZERO Bobby Rex-03 black/green sport calf suede and technical fabric sneakers. PZERO logo on the side. A characteristic of the shoe is the sole with radial imprint and the relative technical specifications on which a translucent spoiler is applied by hand. PIRELLI PZERO is internationally renowned for supporting the world of tyres, but has been synonymous with fashion for more than a century. Ever since the annual PIRELLI trade calendar was introduced in 1964, featuring the most striking models of the day wearing beautiful clothing, the brand has been associated with style and elegance.