PUMA FAST-R NITRO Elite 3 Review: Ultra-Light Carbon Racer

The PUMA FAST-R NITRO Elite 3 launched on April 25, 2025. At just 170g in a US men’s 9 (27cm), it’s one of the lightest carbon plate racing shoes ever made — and it’s been turning heads ever since.

I’d had my eye on it since launch day. Stock was constantly sold out, but I finally got lucky when the official PUMA website restocked.

In this review, I’ll share my hands-on experience with the PUMA FAST-R NITRO Elite 3.

By the end, you’ll know exactly what this shoe is capable of — and whether it’s worth buying.

Product Specs

Spec	Details
Model	FAST-R NITRO Elite 3
Brand	PUMA
Retail Price	¥38,500
Stack Height	Forefoot: 32 mm / Heel: 40 mm / Drop: 8 mm
Weight	185g at US 10 (28cm), measured

Why I Chose the PUMA FAST-R NITRO Elite 3

When PUMA announced a shoe weighing just 170g in a US men’s 9 (27cm), it immediately caught my attention. The FAST-R NITRO Elite 3 is that shoe.

I’d tried several carbon plate racers — including the Vaporfly 3 and Metaspeed Sky Paris — but none quite fit my foot shape or matched my running style.

At the end of 2024, I switched to the PUMA Deviate NITRO Elite 3 and was impressed by how easy it was to run in. I made it my go-to race shoe.

That said, the Deviate NITRO Elite 3 weighs 208g in US 9.5 (27.5cm) — about 10% heavier than the Metaspeed Sky Paris series, which comes in around 190g.

The fastest races I’d run were in the Nike Vaporfly Next% and the original ASICS Metaspeed Sky — both in the 180g range. I’d been searching for a shoe that combined that kind of weight with easy, natural handling.

Starting in April 2025, every major brand began launching ultra-light flagship carbon shoes: the Adidas Adizero Pro 4, Nike Vaporfly 4, and ASICS Metaspeed TOKYO.

PUMA joined the race with the FAST-R NITRO Elite 3, matching the weight of its rivals. Given how much I loved the propulsion and traction of the Deviate NITRO Elite 3, I decided to go for it — even at a premium price.

Hands-On Running Review

Below is my running review, which I plan to update as I log more miles in the shoe.

Training Sessions

My first run happened to be right after a rain shower — a great chance to test traction on wet pavement.

The first thing I noticed was the aggressively cut-away heel — just standing normally, I felt a slight backward tilt. I immediately sensed this shoe wouldn’t work for heel strikers.

Walking in them is genuinely awkward. I actually found myself wondering, “Can I really run in these?”

Since it was first thing in the morning, I planned to ease in around 8:03/mile (5:00/km). But slow paces don’t suit this shoe — I couldn’t run smoothly unless I was going faster than 8:03/mile.

With my usual training shoes, I start runs around 8:51/mile (5:30/km). The FAST-R NITRO Elite 3 made it clear from the start — this is a shoe built for speed.

After about 2km of awkward running, I started picking up the pace. At the same effort level I normally run, I was clocking about 5 seconds per kilometer faster than usual.

The awkwardness disappeared entirely once the pace picked up. The shoe clicked into place around 6:26–6:42/mile (4:00–4:10/km). The forefoot landing area is wider than I expected, with no lateral sway even at 6:26/mile.

The ground feel is firm without being harsh — the forefoot cushioning feels springy and dense. Compared to something like the Metaspeed Sky Paris or Vaporfly 3, this shoe is noticeably firmer.

After a brief recovery, I ran a few strides at 4:34–5:06/mile (2:50–3:10/km). The light weight gets your legs turning over fast, and each stride felt noticeably longer. I had to consciously focus on running cadence to avoid overstriding.

At stride pace, the cut-away heel is completely unnoticeable.

I then moved indoors for a treadmill session.

I ran my usual interval training: 6 minutes × 5 sets at around 6:10/mile (3:50/km), which is roughly my marathon pace.

At 6:10/mile, the shoe is genuinely comfortable. The cut-away heel starts working in your favor — your foot lands smoothly and naturally.

Despite the post-rain humidity, I held nearly the same pace as I would in the Deviate NITRO Elite 3. In matched conditions, the FAST-R NITRO Elite 3 clearly lets me run faster.

That said, you need to stay focused on your landing. As fatigue sets in, you tend to drift toward heel striking — and when you do, you can immediately feel the shoe falling out of its sweet spot.

After the run, I noticed more fatigue in my glutes and hip flexors than I typically feel in other carbon plate shoes. Without strong hip and glute strength, relying too heavily on the FAST-R NITRO Elite 3 could lead to injury.

Race Use

I haven’t yet had the chance to race in this shoe. I’ll update this section when I do.

Rebound, Propulsion, Stability, and Fit

The rebound and propulsion are outstanding — but only when you land on your forefoot.

Landing on your heel makes the shoe hard to control, with lateral instability at foot strike and poor propulsion. In that sense, this is a shoe that demands the right running form.

When you do land on the forefoot, stability is surprisingly solid — likely due to the wider-than-expected forefoot outsole coverage. As long as you’re running at a reasonable pace and not a heel striker, this shoe is fully manageable.

The fit is unremarkable — neither outstanding nor problematic. The upper is extremely thin, but the feel around the foot is neutral. The instep sits a bit lower than I expected, though this stopped bothering me after a few runs.

Appearance and Upper

The upper uses PUMA’s ULTRAWEAVE material. The texture is similar to the original ASICS Metaspeed Sky — extremely thin, and it feels like it could snag and tear if you’re not careful.

The tongue is equally thin — almost masking-tape-thin. Because of this, I’ve had no issues with pressure or discomfort from the laces across the top of my foot.

The shoe comes with an extra pair of laces — light blue and lock-style to prevent untying. I’d recommend swapping to these.

Sizing

The bottom line: the FAST-R NITRO Elite 3 runs true to size — no unusually narrow fit or short toe box. That said, I sized up to US 10 (28.0cm) from my usual US 9.5 (27.5cm). Here’s why.

I normally wear US 9.5 (27.5cm) in all my shoes — the Deviate NITRO Elite 3, Metaspeed Sky Paris, Vaporfly 3, and my everyday trainers.

Even so, I’d always found my race day carbon shoes uncomfortably tight. My training socks are a bit thick, and my toes would press against the end of the shoe.

As a workaround, I switched to ultra-thin race socks for race day. Even then, my toenails would bruise and black out after a marathon.

With all this in mind, I went with US 10 (28.0cm) for the FAST-R NITRO Elite 3, planning to wear Tabio Racing Run Pro five-toe socks. These socks were too tight in my previous carbon shoes at US 9.5.

With the Tabio Racing Run Pro five-toe socks, US 10 (28.0cm) turned out to be the perfect fit for my feet.

I suspect US 9.5 (27.5cm) would work too — though like most race day shoes, it would be a tight fit.

Weight

At US 10 (28.0cm), I measured 185g — a genuinely remarkable weight for a carbon plate racer.

Traction

The outsole uses PUMAGRIP rubber — the same compound found on the Deviate NITRO Elite 3. PUMAGRIP delivers outstanding traction even on wet roads.

Unlike the Deviate NITRO Elite 3, the tread pattern is relatively smooth — yet it grips exceptionally well.

The feel is similar to the ASICS GRIP compound used on the Metaspeed series. In my experience, ASICS GRIP and PUMAGRIP are the two best outsole rubbers available in any racing shoe.

Durability

I’ll update this section as I log more mileage. Given the paper-thin upper and how light it is despite the thick midsole, I expect overall durability to be below average for this category.

Condition at Purchase

Midsole condition at purchase:

Outsole condition at purchase:

Who Should Buy the FAST-R NITRO Elite 3?

The FAST-R NITRO Elite 3 is best suited for the following runners:

The FAST-R NITRO Elite 3 is incredibly light with elite-level propulsion, but the aggressive heel cut-away makes it unsuitable for easy paces or heel strikers.

A pace faster than 6:50/mile (4:15/km) seems to be the minimum threshold. Below that, you can’t fully utilize the shoe’s rebound.

The Nike Vaporfly 4 and the upcoming ASICS Metaspeed Sky TOKYO are both reportedly in a similar weight range to the FAST-R NITRO Elite 3.

With modern racing shoes trending toward softer cushioning, the FAST-R NITRO Elite 3 stands out for its firmer ground feel. For forefoot strikers, this translates into excellent stability at race pace.