PUMA Launches FAST-RB NITRO Elite 2, Breaking World Athletics Rules — image accompanying Marathon Handbook's report. Image accompanying Marathon Handbook’s report; reduced and presented for news commentary with the attributed report. View the complete source report.
PUMA has released a second version of its FAST-RB NITRO Elite 2, designed to exceed World Athletics' rules. The shoe, priced at €350, features two carbon-fiber plates, violating the single-plate rule.
The shoe's midsole includes fused carbon-fiber plates within NITROFOAM Elite foam. PUMA's own material states it is not legal for racing. The stack height remains unclear, but its predecessor exceeded the 40mm limit. Read more gear coverage.
The FAST-RB NITRO Elite 2 is lighter and more breathable than its predecessor. It will be available in more markets, including Latin America. PUMA claims it offers the highest energy return in their testing. Related: Puma RB Nitro Elite 2: A High-Performance Racing Shoe.
This original Runner World brief is based on reporting from Marathon Handbook. Visit the source for its complete reporting, context and any later corrections.
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Questions about this report
What should runners know about PUMA Launches FAST-RB NITRO Elite 2, Breaking World Athletics Rules?
PUMA's new FAST-RB NITRO Elite 2 shoe defies World Athletics regulations with its design. PUMA has released a second version of its FAST-RB NITRO Elite 2, designed to exceed World Athletics' rules. The shoe, priced at €350, features two carbon-fiber plates, violating the single-plate rule.
When did Runner World publish this gear brief?
Runner World published this brief on October 24, 2026. The underlying Marathon Handbook report was dated October 24, 2026.
Where can readers find the complete original report?
This summary is based on reporting from Marathon Handbook. The attributed source link in the article leads to the publisher’s complete report.
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