Puma has been behind some of the most innovative carbon plate running shoes released in recent years, but it’s fair to say the new Puma Fast-RB Nitro Elite goes further in pushing boundaries than anything the brand has done so far.
The RB in the name stands for Rule Breaker, and that’s central to the concept behind the shoe, with Puma aiming to create the bounciest shoe possible outside the constraints set by World Athletics, which include a limit of one plate in the midsole and a maximum stack height of 40mm at the heel.
