Puma claims the Fast-R Nitro Elite 3 is its "fastest ever running shoe," primed for use in the London and Boston marathons.

All of the shoes feature the brand's Pumagrip outsoles, which was added to offer the wearer top-notch traction. In terms of tech, the Velocity Nitro 3 also features Puma's lightweight and ...

Once a pioneer in high-performance sneakers, the company is playing catch-up in an increasingly competitive field ...