Puma releases the most radical running shoe you’ve ever seen

The Puma Fast RB (Rule Breaker) Nitro Elite features an illegal stack height of 58 mm, incorporates three carbon plates and adds more than two inches to your height

Vienna Marathon winner disqualified for wearing the wrong shoes

Derara Hurisa of Ethiopia was disqualified for wearing shoes with soles that were too thick

The carbon shoe revolution

How the new carbon-plated shoes are changing the running game