The Fast-R Nitro Elite 3 will be available to purchase in limited supply from Friday 18 April at Puma’s Boston Marathon ...

A competitor to Nike's throne claims to have built the fastest shoe on the planet. Hard to believe? It brought receipts.

Puma has announced the third-generation Fast-R Nitro Elite 3 ... a 3.56% gain over the Adidas Adios Pro Evo 1, marking it as a significant advancement in the super shoe category.

While all brands will make these claims, a study at the University of Massachusetts Amherst tested the new marathon shoe with ... Alphafly 3, Adidas Adios Pro Evo 1, PUMA Fast-R 2 and the ...

This is apparently backed-up by a study. And the Puma Fast-R Nitro Elite 3 were not being compared to a pair of Dunlop Green Flash trainers, but other top-tier super shoes from the likes of Adidas and ...

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

The Adidas Kaptir 3.0 Running Shoes are available for as low as $46 right now. That's a discount of up to 49% off the regular ...