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

Official pictures, pricing, and tech specs for upcoming release of the PUMA Fast-R NITRO Elite 3 running shoes.

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