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Nike has unveiled the mainstream version of the controversial prototype Nike Alphafly shoe, which they claim adheres to the new World Athletics rules.
Last week, World Athletics placed limits on the use of prototypes in competitions, with the shoe needing to be made publicly available for four months prior to the event, as well as a maximum of 40mm for the sole and just one rigid embedded plate or blade permitted.
Eliud Kipchoge used the initial prototype to shatter the two-hour barrier in his staged marathon in Vienna last year.
But after accusations of technological doping, the world governing body appeared to address the issues surrounding the groundbreaking release from Nike.
Further research into new shoe technology has been recommended, but Nike appear to have abided by the new rules with the new Air Zoom Alphafly Next% range’s release on Wednesday.
Eliud Kipchoge's sub two-hour marathon attemptShow all 70 1 /70Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge proudly holds the flag of Kenya after breaking the two-hour barrier
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge celebrates his incredible accomplishment
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge warms up before the start of the INEOS 1:59 Challenge
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge warms up before the start of the INEOS 1:59 Challenge
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge warms up before the start of the INEOS 1:59 Challenge
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge ahead of the challenge in Vienna
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge ahead of the challenge in Vienna
AFP via Getty Images
Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge ahead of the challenge in Vienna
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt An advertising billboard erected in Nairobi
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge warms up before the start of the INEOS 1:59 Challenge
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge warms up before the start of the INEOS 1:59 Challenge
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge warms up before the start of the INEOS 1:59 Challenge
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt The starting line of the race
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge and his team of pacemakers
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge at the start line
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge at the start line
AFP via Getty Images
Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge at the start of his sub two-hour attempt
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge at the start line
AFP via Getty Images
Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge runs along the Prater Hauptallee in Vienna
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge runs along the Prater Hauptallee in Vienna
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge runs along the Prater Hauptallee in Vienna
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge runs along the Prater Hauptallee in Vienna
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge runs along the Prater Hauptallee in Vienna
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge runs along the Prater Hauptallee in Vienna
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge leaves the start line
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge runs along the Prater Hauptallee in Vienna
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge runs along the Prater Hauptallee in Vienna
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge runs along the Prater Hauptallee in Vienna
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge runs along the Prater Hauptallee in Vienna
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge runs during his attempt to bust the mythical two-hour barrier for the marathon
APA/AFP via Getty Images
Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt The INEOS 1:59 Challenge in Vienna
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge in action next to his pacemakers
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge runs along the Prater Hauptallee in Vienna
AFP via Getty Images
Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge in action next to his pacemakers during the INEOS 1:59 Challenge in Vienna
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt The Kenyan marathon world record holder in action next to his pacemakers
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge runs along the Prater Hauptallee in Vienna
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge runs along the Prater Hauptallee in Vienna
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt A fan poses with gadgets during the race
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Jim Ratcliffe, the founder of the INEOS Chemicals company, during the race
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge runs along the Prater Hauptallee in Vienna
EPA
Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge runs along the Prater Hauptallee in Vienna
APA/AFP via Getty Images
Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge runs along the Prater Hauptallee in Vienna
APA/AFP via Getty Images
Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge runs along the Prater Hauptallee in Vienna
AP
Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge runs along the Prater Hauptallee in Vienna
EPA
Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge celebrates at the finish line
AP
Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge celebrates at the finish line
AP
Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge celebrates at the finish line
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge celebrates at the finish line
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge celebrates at the finish line
Reuters
Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge celebrates at the finish line
APA/AFP via Getty Images
Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge celebrates breaking the two-hour barrier in the marathon
AP
Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge celebrates breaking the two-hour barrier in the marathon
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge celebrates breaking the two-hour barrier in the marathon
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge celebrates breaking the two-hour barrier in the marathon
REUTERS
Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge celebrates breaking the two-hour barrier in the marathon
AFP via Getty Images
Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge celebrates breaking the two-hour barrier in the marathon
AFP via Getty Images
Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge celebrates breaking the two-hour barrier in the marathon
AFP via Getty Images
Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge celebrates breaking the two-hour barrier in the marathon
EPA
Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge celebrates breaking the two-hour barrier in the marathon
EPA
Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge celebrates breaking the two-hour barrier in the marathon
AP
Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge celebrates breaking the two-hour barrier in the marathon
REUTERS
Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge celebrates breaking the two-hour barrier in the marathon
AP
Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge celebrates breaking the two-hour barrier in the marathon
AP
Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's wife and children and Sir Jim Ratcliffe watch on
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge celebrates breaking the two-hour barrier in the marathon
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge celebrates breaking the two-hour barrier in the marathon
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge is embraced by Ineos owner Jim Ratcliffe
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Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge is embraced by Ineos owner Jim Ratcliffe
APA/AFP via Getty Images
Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge celebrates breaking the two-hour barrier in the marathon
EPA
Eliud Kipchoge's sub two-hour marathon attempt Eliud Kipchoge's sub two-hour marathon attempt Kipchoge celebrates breaking the two-hour barrier in the marathon
EPA
“We are pleased the Nike Zoom Vaporfly series and Nike Zoom Alphafly Next% remain legal,” said Nike in a statement.
“We will continue our dialogue with World Athletics and the industry on new standards.”
Nike vice-president, Tony Bignell, said on the American brand’s website: “Barriers are inspiring to innovators. Like athletes, when a barrier is in front of us, we are challenged to think differently and push game-changing progress in footwear design.”
The Nike Viperfly will be used for sprinters but do not currently comply
(Getty)
World Athletics stated that from April 30, only shoes that have been available for purchase on the open market by any athlete for a period of at least four months will be permitted in competition.
The immediate moratorium covers shoes with a sole thicker than 40 millimetres, and shoes which contain more than one rigid embedded plate or blade that runs either the full length or part of the length of it.
Shoes with spikes are allowed an additional plate or blade for the purpose of attaching the spikes, World Athletics said, but the sole must be no thicker than 30mm.
PA contributed to this report
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