The second colorway of the PUMA Fast-R NITRO Elite 3 running shoes sold out in almost every size shortly after the release ...

Offering a 3.15 percent increase in efficiency over the competition, the Fast-R Nitro Elite 3 may represent the most disruptive running shoe since the original Vaporfly. Puma Unlike most shoes, which ...

It’s a bold claim, but Puma is so confident that it offered WIRED access to its testing facility, allowing us to compare the Nitro Elite 3 against other running shoe brands. To make things ...