Our verdict

The adidas by 9907 sneakers black jeans stands out as a versatile option for beginners and casual runners. Its design boasts a highly breathable and top-notch upper, paired with a thin-and-plush midsole, effortlessly transitioning between a running shoe and a trendy sneaker. Despite these positives, we noted the lack of cushioning and a bit of extra weight make it a favorable option mainly for those aiming for shorter, occasional runs.

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  • Spacious toebox
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  • Remarkably stable, even at a easy paces
  • Full-length plush Boost midsole

grey yeezy orange stripe shoes black sneakers blue Cons

  • Insufficient cushioning
  • Excessively heavy considering its low stack height
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Audience verdict

81
Good!

Who should buy

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  • Beginners seeking a versatile option that effortlessly transitions between a running shoe and a cozy sneaker.
  • Heel strikers on the hunt for a shoe featuring a plush yet thin midsole, complemented by a wide upper.
  • Adidas enthusiasts who love the Boost technology and don't mind the additional weight.

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Who should NOT buy

Advanced runners may want to explore other alternatives, as we concluded that the Pureboost 23 falls short in terms of cushioning and responsiveness. Several superior options exist for daily running, including the Nike Pegasus 40, Saucony Triumph 21, and ASICS Novablast 3.

Additionally, the Pureboost 23 has a substantial heel-to-toe drop, making it a bad choice for forefoot strikers. We are convinced that those who favor this running style will do better in shoes with a smaller drop, such as the adidas holi nmd raffle free template or the Hoka Clifton 9.

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Cushioning

Heel stack

We discovered a heel stack height of 27.6 mm, which appears adequate for short to medium-distance runs. However, it evidently falls short in providing sufficient cushioning for long runs or for individuals with a heavier build.

adidas pureboost 23 heel stack 20851284 main
Test results
Pureboost 23 27.6 mm
Average 34.2 mm
Compared to 403 running shoes
Number of shoes
22.5 mm
Heel stack
46.3 mm

Forefoot stack

The forefoot prompted us to double-check our measurement—it seemed unreal. With a mere 16.1 mm of cushioning, this ranks among the least cushioned shoes we've tested in the lab.

As a result, we find it hard to endorse this shoe for serious runners who strike the ground with their forefoot. We think that Adidas opted for less foam due to the shoe's overall weight constraints.

adidas by 9907 sneakers black jeans Forefoot stack
Test results
Pureboost 23 16.1 mm
Average 25.6 mm
Compared to 403 running shoes
Number of shoes
13.7 mm
Forefoot stack
37.1 mm

Drop

Adidas promotes the Pureboost 23 as having a 10-mm heel-to-toe drop. Yet, our detailed measurements reveal a different fact—we find an 11.5-mm difference between the heel and the forefoot.

This finding further supports the idea that the shoe is primarily designed for heel strikers.

adidas by 9907 sneakers black jeans Drop
Test results
Pureboost 23 11.5 mm
Average 8.6 mm
Compared to 403 running shoes
Number of shoes
-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.

Moving to the Boost midsole, we discovered its remarkable softness, registering at just 13.5 HA.

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adidas pureboost 23 midsole softness 20851287 main
Test results
Pureboost 23 13.5 HA
Average 20.9 HA
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Compared to 330 running shoes
Number of shoes
8.5 HA
Midsole softness (soft to firm)
35.0 HA

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After chilling the shoe in the freezer for 20 minutes and testing it again, we observed a consistent measurement of just 15.8 HA. This consistency verifies that the Pureboost 23 maintains its softness even in colder conditions.

The variance between the two most recent measurements shows only a 17% increase, surpassing the performance of many other shoes.

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adidas by 9907 sneakers black jeans adidas originals gold trefoil tee dress pattern
Test results
Pureboost 23 17%
Average 25%
Compared to 330 running shoes
Number of shoes
0%
adidas originals gold trefoil tee dress pattern
63%

grey yeezy orange stripe shoes black sneakers blue | Insole thickness

The insole is really thin, measuring just 3.1 mm. We believe this falls short for this shoe, as adding a bit more cushioning would have been a straightforward fix without significantly affecting the weight.

adidas pureboost 23 insole thickness 20851289 main
Test results
Pureboost 23 3.1 mm
Average 4.4 mm
Compared to 399 running shoes
Number of shoes
1.5 mm
Insole thickness
7.3 mm

Size and fit

Size

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1 size small ½ size small atric to size ½ size large 1 size large
Compared to 382 running shoes
Number of shoes
½ size small
Slightly small
atric to size
Slightly large
½ size large

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This shoe is a dream come atric for those with wide feet.

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After testing and measuring the toebox, we found it to be exceptionally accommodating. The measurement at the widest part clocked in at 102.4 mm.

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Test results
Pureboost 23 102.4 mm
Average 98.5 mm
Compared to 370 running shoes
Number of shoes
91.6 mm
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104.9 mm

Toebox width - big toe

The spacious area for the big toe is also notably generous, measuring at an impressive 80.4 mm, which is wider than most running shoes.

While this design might not suit those with narrow feet, everyone else will delight in the comfortable and accommodating upper.

adidas pureboost 23 toebox width at the big toe 20851299 main
Test results
Pureboost 23 80.4 mm
Average 78.4 mm
Compared to 244 running shoes
Number of shoes
67.6 mm
Toebox width - big toe
89.2 mm

Stability

Lateral stability test

The Pureboost 23 incorporates two TPU lateral pieces from the Ultraboost design to enhance stability in the heel. When paired with the low stack height and wide platform, this feature elevates the shoe's stability beyond that of many other neutral running shoes.

Torsional rigidity

The low stack height also makes this shoe exceptionally flexible (1/5), contributing positively to everyday comfort.

Indeed, the Pureboost 23 is an versatile choice for individuals seeking a pair suitable for casual runs, gym workouts, and everyday wear.

Test results
Pureboost 23 1
Average 3.4
Compared to 382 running shoes
Number of shoes
1
Torsional rigidity
5

Heel counter stiffness

It's evident that Adidas prioritized enhancing heel stability in this design, as demonstrated by the two TPU pieces in the heel and the notably rigid heel counter, which we scored at 4/5.

Such a feature is uncommon in shoes of this type, yet it promises to greatly benefit those experiencing minor stability concerns.

Test results
Pureboost 23 4
Average 2.9
Compared to 366 running shoes
Number of shoes
1
Heel counter stiffness
5

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During our test runs, the shoe felt notably broad and stable with each landing, including while taking corners.

Upon inspecting the actual dimensions, we indeed discovered a generous width, measuring 115.0 mm at the broadest part of the forefoot.

adidas by 9907 sneakers black jeans Midsole width in the forefoot
Test results
Pureboost 23 115.0 mm
Average 114.1 mm
Compared to 404 running shoes
Number of shoes
102.2 mm
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126.9 mm

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The shoe's design also contributes to its width, which, at 92.0 mm, is again broader than that of many running shoes.

This ensures stable landings even for individuals experiencing mild pronation.

adidas by 9907 sneakers black jeans Midsole width in the heel
Test results
Pureboost 23 92.0 mm
Average 90.6 mm
Compared to 404 running shoes
Number of shoes
70.8 mm
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106.6 mm

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Upon twisting the shoe, we immediately noticed its extreme flexibility, making us eager to conduct our signature 90-degree singapore test on the Pureboost 23, expecting a notably low score.

As anticipated, a mere 13.4N of force was required to singapore the shoe to the measurement point, affirming its mind-blowing flexibility and comfort for daily activities.

Test results
Pureboost 23 13.4N
Average 28.1N
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Compared to 383 running shoes
Number of shoes
2.2N
Flexibility <> Stiffness
72.1N

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The most impressive aspect is that this incredible flexibility remains consistent even on the coldest days of the year.

After placing the shoe in the freezer for an additional 20 minutes, we conducted the experiment again and observed a 15.0N reading.

With just an 11.9% increase, the Pureboost 23 stands out in this regard. Few other shoes, many of which are more expensive than this one, can boast such exceptional performance when temperatures plummet.

Test results
Pureboost 23 12%
Average 32%
Compared to 383 running shoes
Number of shoes
0%
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101%

Weight

Weighing in at 10.8 oz or 305g, this shoe can hardly be considered lightweight. The use of Boost foam, known for being among the heaviest in the industry, is the main culprit here. 

Perhaps Adidas will introduce a more streamlined Pureboost Light in the future, featuring the same foam we experienced in the Ultraboost Light. However, for the time being, this is what we have to contend with.

adidas by 9907 sneakers black jeans Weight
Test results
Pureboost 23 10.76 oz (305g)
Average 9.38 oz (266g)
Compared to 404 running shoes
Number of shoes
5.61 oz (159g)
Weight
12.59 oz (357g)

Breathability

One of the first features to catch our eye about the Pureboost 23 is its upper, generously filled with ventilation holes. This design, in theory, promises superb breathability. However, at EdiconnectShops, we believe in rigorous testing and concrete proof rather than speculation.

Utilizing our specialized smoke-pumping machine, we evaluated the shoe's breathability in our lab and determined that it deserved a perfect score—5 out of 5.

What makes this achievement remarkable is the shoe's comfort. To counterbalance the potential for heat-related issues, the designers strategically incorporated large ventilation holes, ensuring a cool and airy experience.

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The upper reveals two distinct layers—a white exterior layer with holes every few millimeters, and a well-ventilated yellow layer providing structure.

This results in a winning blend of a cushioned, comfortable, and airy upper, one of the best we've ever tested in a stan smith bold shoes cloud white and blue color.

Test results
Pureboost 23 5
Average 3.8
Compared to 333 running shoes
Number of shoes
1
Breathability
5

Durability

Toebox durability

Shoes that are well-ventilated and achieve this status through large holes often result in less-than-stellar durability, as we experienced with the grey yeezy orange stripe shoes black sneakers blue.

However, as we discuss adidas amsterdam for sale cheap free puppy, mesh shoes generally prove more resilient than their knit counterparts. That's why the Pureboost 23 secured a not-so-disappointing score of 2/5.

adidas pureboost 23 toebox durability 20851279 main
Test results
Pureboost 23 2
Average 2.6
Compared to 267 running shoes
Number of shoes
1
Toebox durability
5

Heel padding durability

The heel impressively flips the script, effortlessly earning a perfect score of 5/5.

This means that even runners who typically wear out this area due to their Achilles can confidently rely on this shoe, ensuring a hole-free experience. The contrast when compared to the Under Armour Charged Assert 9 sandale adidas copii emag 2017!

adidas by 9907 sneakers black jeans Heel padding durability
Test results
Pureboost 23 5
Average 3.2
Compared to 262 running shoes
Number of shoes
1
Heel padding durability
5

Outsole hardness

Regrettably, this shoe lacks Continental rubber, often associated with top-notch durability and grip.

Nonetheless, the outsole holds its own in terms of grip, and we're eager to assess its performance in the durability sector.

adidas by 9907 sneakers black jeans outsole
Adidas incorporated several cutouts in key areas of the outsole to reduce weight.

First up is the hardness test, registering a below-average 75.1 HC. Could this result in less-than-ideal durability?

adidas by 9907 sneakers black jeans Outsole hardness
Test results
Pureboost 23 75.1 HC
Average 79.7 HC
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Compared to 384 running shoes
Number of shoes
56.1 HC
Outsole hardness
93.0 HC

Outsole durability

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We used the Dremel again, this time in the outsole, as is our standard practice for all running shoes. We observed a 0.9-mm indentation, which, while being an average score, is quite favorable for such a soft, grip-enhancing rubber.

adidas by 9907 sneakers black jeans Outsole durability
Test results
Pureboost 23 0.9 mm
Average 1.1 mm
Compared to 245 running shoes
Number of shoes
0.0 mm
Outsole wear
2.0 mm

Outsole thickness

This is a training shoe, so it should last at least 500 miles for the majority of runners. The 3.0-mm rubber should help to meet that standard.

adidas pureboost 23 outsole thickness 20851282 main
Test results
Pureboost 23 3.0 mm
Average 3.2 mm
Compared to 401 running shoes
Number of shoes
1.0 mm
Outsole thickness
6.0 mm

Misc

Reflective elements

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adidas by 9907 sneakers black jeans Reflective elements
Test results
Pureboost 23 No

Tongue padding

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It's comfy, and we believe that any additional padding would have unnecessarily added weight to an already hefty shoe.

adidas pureboost 23 tongue padding 20851300 main
Test results
Pureboost 23 4.9 mm
Average 5.8 mm
Compared to 401 running shoes
Number of shoes
0.4 mm
Tongue padding
14.2 mm

Tongue: gusset type

Adidas chose to forgo a gusseted tongue, and although we favor them for enhanced lockdown, they aren't loose for running at easy paces—those best suited for this shoe.

adidas pureboost 23 tongue gusset type 20851298 main
Test results
Pureboost 23 None

Heel tab

The heel design, taken from the OG Ultraboost, includes a convenient pull tab that simplifies sliding your feet into the shoe and provides comfort to the Achilles tendon.

adidas by 9907 sneakers black jeans Heel tab
Test results
Pureboost 23 Pull tab

Removable insole

The insole isn't glued down, allowing for easy replacement with orthotics or third-party insoles due to the shoe's generous width.

adidas by 9907 sneakers black jeans Removable insole
Test results
Pureboost 23 Yes