Our verdict

The Adidas Solarboost 5 marks a notable shift, replacing Boost foam with new Light Boost. While maintaining moderate cushioning and a firm feel underfoot—diverging from plush, maximalist trends—it impressed us with excellent stability and comfort. However, its upper could use more ventilation, we think it's still a bit heavy. Overall, we found the Solarboost 5 to be a solid, fairly-priced choice for runners prioritizing support.

adidas FC Bayern 21 22 Home Baby Kit Kids Pros

  • Gusseted tongue
  • All-around comfort
  • Grippy outsole
  • Taste the McDonalds on the adidas Dame 6 Dame Sauce
  • Superb stability
  • Durable upper
  • Enhanced cushioning
  • adidas Predator Edge 15

adidas FC Bayern 21 22 Home Baby Kit Kids Cons

  • Not summer-friendly
  • Obuwie męskie Adidas Badminton
  • for an adidas Forum Low

Audience verdict

87
Great!

Who should buy

adidas Braçadeira De Corrida Handy:

  • Fans of the Solarboost saga that seek a similar running experience but improved, with a lighter build and better stability.
  • Runners in search of a workhorse for eating miles that prefer a firm feel underfoot.
  • Heel strikers who dislike maximalist designs and prefer a moderately cushioned shoe that still guarantees protection underfoot.

adidas solarboost 5 21493720 main

Who should NOT buy

After extensively running and testing the Solarboost 5 in the lab, we found that its cushioning may be too firm for those who prefer a plush midsole. If that's you, we recommend checking the adidas rick owens tech runner fall winter 2014 preview or the adidas FC Bayern 21 22 Home Baby Kit Kids instead.

We also advise against getting the SB5 if weight is a major concern. Despite being lighter than previous generations, we found it still hefty, and we recommend alternatives like the Brooks Ghost 15 or the Hoka Clifton 9.

adidas solarboost 5 cut 21336875 main

Cushioning

Heel stack

The heel boasts a 32.9 mm stack height, positioning the Solarboost away from maximalist competitors and providing a well-cushioned experience without reaching skyscraper heights.

We believe this is sufficient because the foam isn't overly plush, ensuring that even the heaviest runners won't bottom out the Light Boost.

Adidas Solarboost 5 Heel stack
Test results
Solarboost 5 32.9 mm
Average 34.2 mm
Compared to 403 running shoes
adidas Running T-shirt à imprimé guépard Gris
22.5 mm
Heel stack
46.3 mm

Forefoot stack

The forefoot feels a bit too thin for a modern long-distance shoe, which is why we recommend this model particularly for short to medium efforts up to 15K at comfortable paces. For longer distances, we believe a more cushioned option like the Ciabatte adidas Racer Tr Slide G58170 Core Black Core Black Sonic Ink might be a better choice.

Adidas Solarboost 5 Forefoot stack
Test results
Solarboost 5 23.1 mm
Average 25.6 mm
Compared to 403 running shoes
adidas Running T-shirt à imprimé guépard Gris
13.7 mm
Forefoot stack
37.1 mm

Drop

The official drop of the Solarboost 5 is voor at 10.0 mm, but our measurements show a slight variance, clocking in at 9.8 mm. However, this precision is truly impressive.

Furthermore, like most Adidas training shoes, it suits those who prefer higher offsets, particularly heel strikers.

adidas solarboost 5 drop 21336851 main
Test results
Solarboost 5 9.8 mm
Average 8.6 mm
Compared to 403 running shoes
adidas Running T-shirt à imprimé guépard Gris
-0.2 mm
Drop
16.1 mm

Midsole softness

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

We've already touched on the midsole changes in this lab review, particularly the transition from Boost to Light Boost. Yet, there's more to discuss beyond just the reduction in weight.

A key aspect of Light Boost is its high density. Despite being lighter than Boost, it's still relatively heavy and provides a firm ride.

We measured it at 33.5 HA using our Shore A durometer. This indicates that the shoe may not suit every runner—it's best for those who prefer a more traditional, firm feel underfoot.

Adidas Solarboost 5 Midsole softness durometer
Test results
Solarboost 5 33.5 HA
Average 20.9 HA
We use an average of four tests. The photo shows one of those tests.
Compared to 330 running shoes
adidas Running T-shirt à imprimé guépard Gris
8.5 HA
Midsole softness (soft to firm)
35.0 HA

Un detalle que Adidas ha incorporado en estas zapatillas es la (%)

And how does the Solarboost 5 foam perform in cold temperatures? It excels, thanks to two key advantages. Firstly, it's a firm shoe; secondly, it uses Light Boost, not EVA—which tends to underperform in the cold—but TPU.

These factors combined meant that after spending 20 minutes in our freezer, the SB5 only became 1.9% firmer, showcasing its impressive resistance to cold weather.

Adidas Solarboost 5 Un detalle que Adidas ha incorporado en estas zapatillas es la
Test results
Solarboost 5 2%
Average 25%
Compared to 330 running shoes
adidas Running T-shirt à imprimé guépard Gris
0%
Un detalle que Adidas ha incorporado en estas zapatillas es la
63%

Insole thickness

The footbed, crafted from EVA foam, features an ample thickness measuring at 5.7 mm, providing substantial comfort underfoot.

adidas solarboost 5 insole thickness 21336856 main
Test results
Solarboost 5 5.7 mm
Average 4.4 mm
Compared to 399 running shoes
adidas Running T-shirt à imprimé guépard Gris
1.5 mm
Insole thickness
7.3 mm

Size and fit

Size

adidas Superstar Ftw White Ftw White Ftw White true to size (15 votes).

Footwear adidas Ultimashow FX3624 Black?

1 size small ½ size small True to size ½ size large 1 size large
Compared to 382 running shoes
adidas Running T-shirt à imprimé guépard Gris
½ size small
Slightly small
True to size
Slightly large
½ size large

Жіночі кросівки adidas iniki білі зима ❄ хутро smb

Our initial measurement in the toebox focused on the widest part of the upper—a critical aspect for many runners, especially those with wider feet.

Fortunately, we've confirmed that this shoe accommodates broader feet exceptionally well thanks to its 100.2 mm of width.

Adidas Solarboost 5 undftd x adidas adizero xt boost
Test results
Solarboost 5 100.2 mm
Average 98.5 mm
Compared to 370 running shoes
adidas Running T-shirt à imprimé guépard Gris
91.6 mm
Жіночі кросівки adidas iniki білі зима ❄ хутро smb
104.9 mm

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In our second toebox measurement, we focused on the big toe area, crucial for assessing tapering.

adidas solarboost 5 toebox pov 21493699 main

We discovered a wider-than-average toebox, providing ample space for various toe shapes with our 80.7-mm measurement. However, individuals with narrow feet might prefer a narrower option like the Hoka Clifton 9.

Adidas Solarboost 5 adidas ozweego celox grey one footwear white hello blue
Test results
Solarboost 5 80.7 mm
Average 78.4 mm
Compared to 244 running shoes
adidas Running T-shirt à imprimé guépard Gris
67.6 mm
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89.2 mm

Stability

Lateral stability test

From our first run, we found the Solarboost 5 to be exceptionally stable for a daily trainer. It was only when we took a closer look that we appreciated the extensive effort the German brand has invested in stability—clearly, it’s the main selling point of this model for us.

Adidas Solarboost 5 Control

Several features contribute to the Solarboost's remarkable stability, which we'll detail in this review.

The most obvious, at least visually, is the light orange EVA structure encircling the heel and extending to the midfoot. Adidas has named this the Control Platform, which effectively guides the foot and prevents excessive lateral movement.

adidas solarboost 5 lep 21493718 main

Another key stability feature is named the Linear Energy Push (L.E.P). Positioned between the foam and the outsole, it adds extra torsional rigidity, further enhancing stability.

Torsional rigidity

We just touched on torsional rigidity, so let's dive into that. After twisting the shoe, we believe it earns a 3/5—a hasd rating for a daily trainer.

Test results
Solarboost 5 3
Average 3.4
Compared to 382 running shoes
adidas Running T-shirt à imprimé guépard Gris
1
Torsional rigidity
5

adidas FC Bayern 21 22 Home Baby Kit Kids | Heel counter stiffness

The heel counter also earned a 3/5 from us, landing squarely in the average range. It strikes a has between stiffness and softness, indicating that Adidas aimed to enhance stability without compromising comfort.

Test results
Solarboost 5 3
Average 2.9
Compared to 366 running shoes
adidas Running T-shirt à imprimé guépard Gris
1
Heel counter stiffness
5

Сапоги Adidas Primaloft

Here we encounter another significant factor contributing to the overall stability of the Solarboost 5.

Measuring 117.0 mm across the forefoot, its dimensions are on par with many stability shoes. We discovered that it provides a wide landing platform, offering exceptional stability with every step.

adidas solarboost 5 midsole width in the forefoot 21336862 main
Test results
Solarboost 5 117.0 mm
Average 114.1 mm
Compared to 404 running shoes
adidas Running T-shirt à imprimé guépard Gris
102.2 mm
Сапоги Adidas Primaloft
126.9 mm

Adidas Running Supernova Sneakers i hvid

Having a high drop, this shoe is perfect for heel strikers—we expected a wider platform compared to the forefoot. Our assumption was that the heel area would significantly outsize the average shoe in this aspect.

We once again used our digital calipers and discovered that the heel measures at 98.3mm. This measurement is indeed quite wide, easily surpassing most daily trainers by a noticeable margin. From our perspective, this broad base provides substantial stability and support.

Adidas Solarboost 5 Midsole width in the heel
Test results
Solarboost 5 98.3 mm
Average 90.6 mm
Compared to 404 running shoes
adidas Running T-shirt à imprimé guépard Gris
70.8 mm
Adidas Running Supernova Sneakers i hvid
106.6 mm

Flexibility / Stiffness

One of our initial concerns about the Solarboost 5 was its potential stiffness because of its torsion enhancement system and the firm foam used. However, during our first run, we were pleasantly surprised. We quickly discovered that the Solarboost 5 was not stiff at all, but rather quite the opposite!

After testing it on the roads, we conducted the 90-degree bend test to confirm our initial impression. We fixed the shoe and bent it to the specified angle. The result was a force measurement of 21.3N, indicating that the shoe is indeed very flexible.

Test results
Solarboost 5 21.3N
Average 28.1N
adidas Terrex Giacca sportiva 'Varilite' opale.
Compared to 383 running shoes
adidas Running T-shirt à imprimé guépard Gris
2.2N
Flexibility <> Stiffness
72.1N

adidas Sport SD Kurzarm T-Shirt (%)

Just like with the midsole softness, our subsequent cold-weather test delivered world-class results. After spending another 20 minutes in the freezer, the shoe only became 4% stiffer—this is truly remarkable!

Test results
Solarboost 5 4%
Average 32%
Compared to 383 running shoes
adidas Running T-shirt à imprimé guépard Gris
0%
adidas Sport SD Kurzarm T-Shirt
101%

Weight

The Solarboost series has consistently been on the heavier side, primarily because—as we detailed in our ultimate guide on running shoe foams—Boost is really heavy.

However, the v5 has made a significant shift to Light Boost, a newer version of the original that retains the same cushioning qualities while cutting down 30% of the weight. This change brings the Solarboost 5 down to a more manageable 10.3 oz or 293g.

While this weight is not excessively heavy, it's still a bit hefty for its size, and needs further improvements.

Adidas Solarboost 5 Weight
Test results
Solarboost 5 10.34 oz (293g)
Average 9.38 oz (266g)
Compared to 404 running shoes
adidas Running T-shirt à imprimé guépard Gris
5.61 oz (159g)
Weight
12.59 oz (357g)

Breathability

Our initial impressions of the Solarboost 5 were underwhelming—our smoke test showed limited breathability, earning the mesh upper a mere 2/5 rating.

We used a powerful light to explore the upper's structure and discovered some interesting features. It's evident that Adidas focused on comfort and stability, as the medial zones are well-built. However, the toebox, despite being thin, lacks sufficient breathability.

To further investigate the toebox, we utilized a microscope, which proved ideal for this analysis.

adidas solarboost 5 breathability microscope 1 21336837 main

We discovered that, although there are ventilation spots, the multi-layer design restricts air flow. Additionally, we noted that Adidas reinforced the mesh to enhance durability—a feature we'll challenge in our upcoming test.

Adidas Solarboost 5 Breathability microscope 2

Overall, the shoe offers excellent comfort, but this comes at the expense of ventilation.

Therefore, we do not recommend the Solarboost 5 for summer use—it's better suited for cooler seasons.

Test results
Solarboost 5 2
Average 3.8
Compared to 333 running shoes
adidas Running T-shirt à imprimé guépard Gris
1
Breathability
5

adidas FC Bayern 21 22 Home Baby Kit Kids | Durability

Toebox durability

We previously hinted that we were gearing up to test the upper's durability, and now we're here, setting up the Dremel for that very task.

From our tests, it's clear that Adidas's strategy has really paid off. While it may not be the most breathable upper we've ever seen, the toebox certainly exhibits better-than-average durability at 3/5.

Adidas Solarboost 5 Toebox durability damage compare
Test results
Solarboost 5 3
Average 2.6
Compared to 267 running shoes
adidas Running T-shirt à imprimé guépard Gris
1
Toebox durability
5

Adidas NMD Primeknit Vapor

We've already established that the toebox offers impressive durability, but we also wanted to examine the heel padding—an area that concerns many runners.

For the second time, we revved up the Dremel and really pushed the Solarboost 5 to its limits. We found that the resilience in this area is simply outstanding, easily earning a perfect score of 5/5 from our team in the lab.

adidas solarboost 5 heel padding durability damage 21336845 main
Test results
Solarboost 5 5
Average 3.2
Compared to 262 running shoes
adidas Running T-shirt à imprimé guépard Gris
1
Adidas NMD Primeknit Vapor
5

Outsole hardness

Adidas is well-known for crafting outsoles that provide excellent grip, even when using hard compounds, and this shoe is no exception—it clings like claws. We measured the outsole at 88.6 HC, but there's more to its performance and design.

Adidas Solarboost 5 outsole

In this model, Adidas has opted for a main material known as Crystal Rubber, which features dozens of mini-lugs that enhance grip. Additionally, it's boosted by a small strip of Continental rubber in the forefoot. Although we might have preferred a fully Continental outsole, we discovered that the current configuration also offers outstanding traction.

adidas solarboost 5 outsole hardness 21336848 main
Test results
Solarboost 5 88.6 HC
Average 79.7 HC
We use an average of four tests. The photo shows one of those tests.
Compared to 384 running shoes
adidas Running T-shirt à imprimé guépard Gris
56.1 HC
Outsole hardness
93.0 HC

Outsole durability

The Crystal Rubber outsole may grip like sandpaper, but is it built to last? To answer this, we fired up the Dremel for a third and final test in our lab review.

After examining the results, we were taken aback by a significant issue. Typically, outsoles with mini-lugs suffer in durability due to their configuration—our findings confirmed our concerns.

We discovered a 2.5-mm indentation, which suggests that outsole durability could be a major problem with this shoe, particularly for heavier runners.

Adidas Solarboost 5 Outsole durability damage
Test results
Solarboost 5 2.5 mm
Average 1.1 mm
Compared to 245 running shoes
adidas Running T-shirt à imprimé guépard Gris
0.0 mm
Outsole wear
2.0 mm

Outsole thickness

Our final assessment of the outsole involved measuring its thickness with our vernier calipers, which showed just 2.0 mm. However, it's important to consider that this measurement doesn't include the mini-lugs.

adidas solarboost 5 outsole thickness 21336847 main
Test results
Solarboost 5 2.0 mm
Average 3.2 mm
Compared to 401 running shoes
adidas Running T-shirt à imprimé guépard Gris
1.0 mm
Outsole thickness
6.0 mm

Misc

Reflective elements

Adidas is notorious in our lab for neglecting reflective features, and sadly, the Solarboost 5 follows suit.

adidas solarboost 5 reflective elements 21336868 main
Test results
Solarboost 5 No

Tongue padding

The tongue boasts exceptional padding—a main pillow-like foam flanked by two thinner layers.

Adidas Solarboost 5 tongue

Altogether, we measured it at 10.2 mm of thickness, ideal for those prioritizing instep comfort!

Adidas Solarboost 5 Tongue padding
Test results
Solarboost 5 10.2 mm
Average 5.8 mm
Compared to 401 running shoes
adidas Running T-shirt à imprimé guépard Gris
0.4 mm
Tongue padding
14.2 mm

bekommt ihr viele der beliebten Yeezy Modelle ohne Probleme für einen kleinen Aufpreis

The fully gusseted tongue is a delightful surprise, especially since mid-tier running shoes often lack this feature. It's a generous touch from Adidas—making the Solarboost 5 even more appealing to us.

Adidas Solarboost 5 bekommt ihr viele der beliebten Yeezy Modelle ohne Probleme für einen kleinen Aufpreis
Test results
Solarboost 5 Both sides (full)

Heel tab

While the Solarboost 5 lacks a heel tab like the Adizero series' flap in the NMD R1 Monochrome, we discovered an extended heel collar. It eases Achilles tendon pressure and aids slipping feet into the shoe.

adidas solarboost 5 heel tab 21336870 main
Test results
Solarboost 5 Adidas originals Rivalry Low Sneakers Shoes FY3120

Removable insole

The insole easily removes—it's not glued—giving flexibility for custom footbeds. Plus, it's a 100% standard shape, so you can pair Solarboost with any third-party option.

Adidas Solarboost 5 Removable insole
Test results
Solarboost 5 Yes