Puma Lex Stardust Training Shoe Pink PINK Training Shoes 376225-01 | Our verdict

The Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 takes a daring approach with unique features like a decoupled heel and extended carbon-fibre plate, creating an unusual ride that may not suit everyone. We found in the lab that it's also really heavy for a modern supershoe, and stability could be better. However, we enjoyed its wild ride and design. In our view, this shoe caters to those looking for a departure from the ordinary, though it has multiple drawbacks that cannot be overlooked.

Puma Lex Stardust Training Shoe Pink PINK Training Shoes 376225-01 Pros

  • Enhanced energy return
  • Ultra-370551-04 upper
  • Exceptional grip
  • Max race-day legal stack
  • Highly responsive
  • Works for all footstrikes
  • Great for marathons

Puma Lex Stardust Training Shoe Pink PINK Training Shoes 376225-01 Cons

  • Excessively heavy
  • Odd-feeling decoupled heel
  • Sneakers and shoes Puma Cali sale

Audience verdict

81
Good!

Who should buy

After testing in the lab the Buty męskie sneakersy Puma Rs-X3 Prism 374758 03, we've discovered that:

  • It's a standout choice for those who appreciate a head-turning design without sacrificing performance at races.
  • It excels for runners who prioritise excellent traction, as the PUMAGRIP outsole offers world-class grip in all conditions.
  • Marathoners looking for an aggressive ride will find this shoe is a blessing with its super-stiff carbon plate.

Buty męskie sneakersy Puma Rs-X3 Prism 374758 03

Puma run favourite woven 7 inch session short in multi

The Fast-R Nitro Elite 2 stands out as Puma's most radical supershoe yet, but we found its weight heavier than desired. For those seeking a lightweight racing shoe, this is not the answer. We recommend considering alternatives like the Nike Vaporfly 3 or the Puma Suede Fs, which offer world-class performance without the extra bulk.

Additionally, we believe the Fast-R Nitro Elite 2 may not provide the stable ride some need. For better support, the Adidas Adizero Adios Pro 3 and Hoka Rocket X 2 are not only lighter and more affordable, but they also offer a more stable ride.

Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 parts

Breathability

Proper ventilation is crucial in any racing shoe, and the Ultraweave upper of this shoe appears highly 370551-04 at first sight. Is it really? Let's find out in the lab.

Our initial test, involving smoke to trace airflow, is crucial. Fortunately, it confirmed excellent airflow, earning the Fast-R Nitro Elite 2 a perfect 5/5 on our scale.

Puma achieved this with an ultra-thin engineered mesh, clearly visible as we moved the upper over our light. We've encountered only a few uppers thinner than this one, and impressively, this airiness extends even to the heel, ensuring comfort for the entire foot, although that will impact stability in a negative way.

Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 microscope

Next, we examined the Ultraweave upper under the microscope to understand its unique structure. Despite lacking visible ventilation holes, air flows effortlessly thanks to micro-holes naturally present in the mesh.

Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 Ultraweave

Finally, a manual examination confirmed the upper is not stretchy and has minimal padding—just what we expect from a shoe designed for race day!

Test results
Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 5
Average 3.8
Compared to 230 running shoes
Number of shoes
1
Breathability
5

Durability

Puma Lex Stardust Training Shoe Pink PINK Training Shoes 376225-01 | Toebox durability

We've already established that the Fast-R Nitro Elite 2 offers exceptional ventilation, but this comes at the cost of using very thin materials. And this raised our concerns about its durability.

Indeed, after conducting our first Dremel test, we confirmed our initial suspicions—the upper's durability is severely lacking, leading us to rate it a mere 1/5.

Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 Toebox durability
Test results
Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 1
Average 2.4
Compared to 164 running shoes
Number of shoes
1
Toebox durability
5

Heel padding durability

We flipped the Fast-R to test the heel padding, hopeful for a better result.

And we were thrilled with the outcome! The heel padding not only performed better but achieved a perfect score of 5/5. This ensures that no matter how much you race and train in these shoes, the heel padding will withstand the wear and tear.

Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 Heel padding durability
Test results
Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 5
Average 3.2
Compared to 160 running shoes
Number of shoes
1
Heel padding durability
5

Outsole hardness

We've moved on from the upper and now it's time to assess the outsole. Given its steep, 260-bucks price, we expected that the Fast-R Nitro Elite 2 was going to feature PUMAGRIP—Puma's most advanced rubber technology. And here it is.

Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 outsole

The rubber coverage is notably generous, featuring two thick pods at the heel and full-length coverage in the forefoot. Will this hinder the shoe's weight?

With a hardness score of 74.0 HC, the formula closely mirrors that of the Puma Deviate Nitro Elite 2, which we found also provided exceptional grip, undoubtedly one of the best in the industry.

Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 Outsole hardness
Test results
Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 74.0 HC
Average 80.5 HC
We use an average of four tests. The photo shows one of those tests.
Compared to 281 running shoes
Number of shoes
52.1 HC
Outsole hardness
93.0 HC

Outsole durability

To evaluate the durability of the PUMAGRIP rubber, we ramped up the Dremel to 10,000 RPM for a third test.

We then measured the indentation in the outsole and found a 1.0 mm gap. Considering the softness of the rubber, this is a good result.

Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 Outsole durability
Test results
Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 1.0 mm
Average 0.9 mm
Compared to 142 running shoes
Number of shoes
0.0 mm
Outsole wear
2.0 mm

Outsole thickness

We measured the outsole thickness with our vernier calliper and were surprised to find a substantial 3.0mm of rubber.

This is quite impressive for a marathon shoe and might contribute to a heavier weight. However, for those who value durability in a supershoe, this is certainly welcome news.

Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 Outsole thickness
Test results
Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 3.0 mm
Average 3.2 mm
Compared to 300 running shoes
Number of shoes
0.0 mm
Outsole thickness
6.6 mm

Weight

We've already expressed concerns in previous tests about the weight of this shoe, noting its heft during our runs. And the scale confirms our suspicions.

At 9.3 oz or 264g, that's HEAVY for racing. We suggest this model only if the extra weight isn't a deal-breaker for you.

In fact, apart from the Cielo X1 Smash V2 Buck V Ps 365183 40 Puma Black Prism Pink Puma drycell худи кофта на змейке оригинал s—which sports a similar design and stack height—are significantly lighter, weighing just 7.1 oz or 201g on our scale.

Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 Weight
Test results
Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 9.31 oz (264g)
Average 9.35 oz (265g)
Compared to 301 running shoes
Number of shoes
5.26 oz (149g)
Weight
12.56 oz (356g)

Cushioning

Heel stack

While the Fast-R Nitro Elite 2 is on the heavier side, it effectively maximises its dimensions to the 40-mm heel limit set by World Athletics, packing as much cushioning as possible. We measured the heel stack at an impressive 39.7 mm.

Buty męskie sneakersy Puma Rs-X3 Prism 374758 03

This is particularly beneficial for heavier heel strikers seeking a shoe that can comfortably support their weight over the full 26.2 miles of a marathon.

Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 Heel stack
Test results
Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 39.7 mm
Average 33.6 mm
Compared to 300 running shoes
Number of shoes
7.6 mm
Heel stack
42.7 mm

Forefoot stack

The Fast-R Nitro Elite 2 stands out as one of the few racing shoes that incorporate reflective elements—kudos to Puma for this one!

Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 Forefoot stack
Test results
Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 31.9 mm
Average 24.9 mm
Compared to 300 running shoes
Number of shoes
7.6 mm
Forefoot stack
35.8 mm

Drop

Following our initial measurements, we calculated a 7.8-mm heel-to-toe drop, closely aligning with Puma's stated 8-mm drop.

We're pleased with this accuracy—discrepancies with brands are typically more pronounced! Additionally, the 8-mm offset makes this shoe versatile, suitable for nearly every type of footstrike.

Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 Drop
Test results
Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 7.8 mm
Average 8.7 mm
Compared to 300 running shoes
Number of shoes
-0.8 mm
Drop
16.1 mm

Insole thickness

The insole, while comparable in thickness to average running shoes, was a surprising find for us—competition shoes typically feature thinner footbeds.

Why does this matter? Well, installing a 4.3-mm insole, as found here, within a shoe restricted to a 40-mm overall stack height results in a loss of 2 or 3 mm of foam. This could have been allocated to high-energy-return, Nitro Elite instead.

Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 Insole thickness
Test results
Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 4.3 mm
Average 4.5 mm
Compared to 296 running shoes
Number of shoes
1.5 mm
Insole thickness
7.3 mm

Midsole softness

Note: a low durometer measurement equals a soft material, whereas a high measurement means it's firm.

Speaking of energy return, we discovered the expected material in the midsole: Nitro Elite.

It's Puma's premier foam, known for its substantial energy return. However, Puma has shifted its formulation from supercritical, nitrogen-injected PEBA to Aliphatic TPU—a first for the brand.

In terms of softness, Puma opted for a balanced approach with a hardness of 19.5 HA. Because of this formulation, we didn't find the experience plush at all, particularly in the forefoot, which we attribute to the ultra-low placement of the carbon-fibre plate.

Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 Midsole softness
Test results
Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 19.5 HA
Average 21.4 HA
We use an average of four tests. The photo shows one of those tests.
Compared to 228 running shoes
Number of shoes
8.5 HA
Midsole softness (soft to firm)
41.5 HA

Puma Wired Knit Ps EU 31 High Rise High Risk Red

Given that it's made from TPU, we weren't surprised that the Fast-R Nitro Elite 2 performed exceptionally well in our first freezer challenge. We placed the shoe in the freezer for 20 minutes and then retested its softness, finding only a 9% increase!

Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 Puma Wired Knit Ps EU 31 High Rise High Risk Red
Test results
Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 9%
Average 25.6%
Compared to 227 running shoes
Number of shoes
0%
Puma Wired Knit Ps EU 31 High Rise High Risk Red
100%

Plate

The standout feature is the PWRPLATE, which is prominently visible throughout the shoe due to the absence of foam in the midfoot, exposing the carbon-fibre plate.

Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 carbon

Puma has really gone wild with this design, and the stiffness of the plate reflects that. It may not be suitable for everyone, particularly those looking for a comfortable racing shoe.

In our view, if less stiff feel is a priority, we suggest opting for the comfy ride of the PUMA x FIRST MILE label at front instead.

Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 Plate

Rocker

Another standout feature of the bizarre design of the Fast-R Nitro Elite 2 is the toe rocker. It begins noticeably early and the plate extends beyond the upper.

Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 extended plate

This is intended to enhance running economy, though its real-life benefits can be hard to quantify. However, what is clear is that this design is truly one of a kind.

Stability

Чоловічі кросівки puma bmw roma black 306195-03

One major concern with supershoes is often their stability, which usually takes a back seat in the final product. In our tests, the Fast-R Nitro Elite 2 offered a somewhat stable ride, performing better than some of the plushest supershoes.

However, don't anticipate a very supportive run experience. The minimal upper and the decoupled midsole don't contribute much to stability, and, true to the design and geometry of this shoe, the ride is definitely on the wild side!

Torsional rigidity

As soon as we stepped into this shoe, we were struck by its rigidity. It's absolutely mind-blowing, a stark contrast to the flexibility of something like the Puma deviate nitro elite carbon 37709001. Puma nieve boot wtr ac ps 38074503.

Test results
Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 5
Average 3.2
Compared to 279 running shoes
Number of shoes
1
Torsional rigidity
5

Heel counter stiffness

Conversely, the heel counter is extremely flexible, as is typical for a racing shoe, which led us to give it a 1/5 rating.

For those requiring a more secure heel hold—and thus might prefer a more traditional running shoe while still targeting top performance—the ASICS Superblast is an excellent choice.

Test results
Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 1
Average 2.8
Compared to 263 running shoes
Number of shoes
1
Heel counter stiffness
5

Midsole width in the forefoot

We've already highlighted that the design of this shoe is truly unique, leading to some intriguing findings in the lab.

One surprising discovery was that although the midsole appears exceptionally narrow, measurements showed it to be fairly standard at 114.2 mm. This demonstrates that initial feelings can sometimes be deceiving and that lab testing really matters...

Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 Midsole width in the forefoot
Test results
Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 114.2 mm
Average 113.7 mm
Compared to 301 running shoes
Number of shoes
100.5 mm
Midsole width in the forefoot
126.5 mm

Puma мужские кроссовки lqdcell extol japanorama

The heel also feels narrow, and indeed it's not broad at all.

Measuring just 86.6 mm, it's clear to us that those requiring stability in the heel may not enjoy a lovely ride in the Fast-R NE 2.

Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 Puma мужские кроссовки lqdcell extol japanorama
Test results
Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 86.6 mm
Average 90.4 mm
Compared to 301 running shoes
Number of shoes
74.9 mm
Puma мужские кроссовки lqdcell extol japanorama
106.6 mm

Flexibility

Stiffness

During our rigidity evaluation, where each shoe is bent to a 90-degree angle, the Fast-R Nitro Elite 2 displayed significant stiffness, achieving a Hulk-like force measurement of 84.4N.

Why going so stiff? Well, crafting a top super shoe typically involves a combination of resilient foam and a rigid structural plate. In this case, the lively bounce is provided by Nitro Elite A-TPU foam, and the mind-blowing rigidity is courtesy of the carbon-fibre PWRPLATE. Puma just decided to go all-in here.

Test results
Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 84.4N
Average 29.1N
We use an average of four tests. The video shows one of those tests.
Compared to 283 running shoes
Number of shoes
2.2N
Stiffness
94.4N

Difference in stiffness in cold

We conducted another freezer test, placing this Puma in there for 20 more minutes, and we observed a 19.2% increase in stiffness (100.6N!). If you're planning to run a winter marathon, be prepared to handle this level of rigidity.

Test results
Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 19.2%
Average 36.2%
Compared to 283 running shoes
Number of shoes
0%
Difference in stiffness in cold
148%

Size and fit

Puma Scuderia Ferrari Team Koszulka Z Krótkim Rękawem

Given its radical design, we anticipated a unique fit in the toebox. However, when we measured the widest part of the upper, it came to 96.9 mm, which aligns quite closely with the norm for racing shoes and even resembles the fit of many daily running shoes.

Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 Puma Scuderia Ferrari Team Koszulka Z Krótkim Rękawem
Test results
Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 96.9 mm
Average 98.4 mm
Compared to 301 running shoes
Number of shoes
89.5 mm
Puma Scuderia Ferrari Team Koszulka Z Krótkim Rękawem
109.1 mm

Toebox width at the big toe

Conversely, the big toe area fully embodies the Fast-R spirit. It is one of the most tapered designs we've encountered in the lab—a fact that's visually apparent and was confirmed with our callipers.

Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 toebox

The sole flare is pronounced, and it denies any chance of having a roomy fit, as it necessitates pairing a narrow upper with a wide midsole.

Clearly, we believe that those with square-shaped feet will find this shoe unsuitable.

Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 Toebox width at the big toe
Test results
Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 60.4 mm
Average 78.2 mm
Compared to 175 running shoes
Number of shoes
60.4 mm
Toebox width at the big toe
92.5 mm

Tongue: gusset type

For those looking to not worry about their shoe’s tongue during a race, we believe the sock-like tongue is the way to go. It stays perfectly in place—it doesn’t shift, clings closely to the feet, and offers a tight feel.

Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 Tongue: gusset type
Test results
Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 Sock like

Comfort

Tongue padding

The tongue of the shoe is exactly what we anticipated for a proper marathon shoe—remarkably thin at just 1.3mm.

Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 tongue

Regular laces on a £270 shoe? That's disappointing...

Due to this, comfort is minimal, and we advise being cautious when cinching down the laces before a marathon. Over-tightening could lead to mid-race instep pain, as we discovered during our tests.

Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 Tongue padding
Test results
Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 1.3 mm
Average 5.6 mm
Compared to 298 running shoes
Number of shoes
0.5 mm
Tongue padding
14.2 mm

Heel tab

In the heel, we discovered a handy finger-loop heel tab, which is absolutely essential in any shoe featuring a sock-like upper.

Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 Heel tab
Test results
Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 Finger loop

Removable insole

The insole is removable, which is uncommon in competition shoes. However, as shown in our photo, the outsole's unique shape—with a protruding midfoot area—may pose some challenges when trying to replace it with a different option.

Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 Removable insole
Test results
Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 Yes

Misc

Reflective elements

The Fast-R Nitro Elite 2 stands out as one of the few racing shoes that incorporate reflective elements—kudos to Puma for this one!

Test results
Buty męskie sneakersy Puma Rs-X3 Prism 374758 03 Yes