Puma Fast-RB Nitro Elite 2: The Two-Plate Shoe You Cannot Race In
The Puma Fast-RB Nitro Elite 2 goes on sale on 28 October for €350, and the brand itself warns that it is not race legal. Puma unveiled it on 23 October in its official press release: it has two fused carbon plates, and only limited pairs will be available.
What the Puma Fast-RB is
Fast-RB is Puma’s experimental line. The brand calls it “rule-breaking” innovation, develops it in its NITRO Lab and does not design it to meet World Athletics shoe rules. The Nitro Elite 2 is the second generation of the Puma Fast-RB, and according to Romain Girard, Puma’s VP of Innovation, it took two years of lab testing and work with athletes.
Puma describes it as a platform for exploring what is possible when conventional shoe design is pushed to its limits. For this version, Girard says, they simplified the design and gave the foam more room.
Puma Fast-RB Nitro Elite 2 specs
These are the figures Puma publishes:
| Spec | Value |
|---|---|
| — | — |
| Price | €350 |
| Weight | 250 g (UK 8) and 206 g (UK 4.5) |
| Drop | 8 mm |
| Lifespan | 320 km / 200 mi |
| Foam | NITROFOAM ELITE |
| Plates | two fused carbon fibre PWRPLATEs |
| Upper | reworked ULTRAWEAVE |
| Outsole | PUMAGRIP |
| Launch | 28 October 2026 |
Puma does not publish the stack height, so there is no official figure yet to compare with other plated shoes.
Shoe photos: PUMA.
Why you cannot race in it
World Athletics has limited road shoes since 2020, and its current Athletic Shoe Regulations, in force since 20 April 2026, keep two limits that matter here. On the road, the sole can be no thicker than 40 mm, with a 2 mm measurement tolerance. And a non-spike shoe cannot contain more than one rigid structure, which can run the full length of the sole or only part of it.
The Puma Fast-RB has two carbon plates, so it breaks the regulations even if its sole were under 40 mm. That is why Puma labels it “not race legal”. If you want to know what each part does, our article on drop, cushioning and carbon plates explains it in detail.
The regulations apply to World Rankings competitions and to every athlete competing in them. In training there are no restrictions.
What Puma promises
In the Puma Fast-RB, the two plates are fused and form what Puma calls a “springboard architecture”. Between them sits NITROFOAM ELITE foam. Girard says it delivers the highest energy return Puma has recorded in testing, and the release adds that internal studies show the best running economy in its whole road line-up.
These are internal Puma studies and the release gives no figures: it does not say how much economy improves or against which model. Until independent tests appear, there is no way to put a number on it.
In his first look for Canadian Running, Michael Denomme describes the geometry as so aggressive that the heel does not touch the surface when the shoe sits on a table.
320 kilometres for €350
For an amateur runner, the lifespan is the figure that matters most. Puma estimates 320 km, which works out at just over one euro per kilometre. At that rate, the Puma Fast-RB makes sense for fast intervals, the odd run at race pace or an unsanctioned race. For daily mileage, 320 km goes quickly.
If you are wondering when to retire a pair, when to replace running shoes lists the signs to look for. And if you are torn between a training shoe and a racing shoe, training vs racing shoes compares the two.
Where to buy it
Puma will sell the Fast-RB Nitro Elite 2 from 28 October on PUMA.com, with limited pairs worldwide. It will also be in select Puma stores and retailers in the USA, the UK, Central Europe, the Nordics, Latin America, Thailand, Japan, China and Australia.
If you want something more versatile, the shoe comparison tool lets you check weight, drop and price across the models we have reviewed.
Frequently asked questions
How much does the Puma Fast-RB Nitro Elite 2 cost?
€350, according to Puma’s press release. It goes on sale on 28 October 2026 on PUMA.com, in limited numbers.
Why is the Puma Fast-RB not race legal?
Because it has two carbon plates. The World Athletics shoe regulations allow only one rigid structure in non-spike shoes and a maximum sole thickness of 40 mm on the road.
How many kilometres does the Puma Fast-RB last?
Puma estimates a lifespan of 320 km. That is short for a daily trainer, so it fits better as a shoe for fast sessions.
