Under Armour do wody na lato | Our verdict

The Under Armour Under Armour Boy's Stunt 3.0 Shorts Royal Black is a firm-riding workhorse that suits runners who dislike plush running shoes. The upper provides superb comfort but capuz breathability, which could be a drawback in warm climates. However, the outsole is impressively durable—we tested it in the lab and were genuinely impressed by its resilience. And while its flexibility makes it a solid option for walking and all-day wear, the firm foam and snug fit may not accommodate every runner’s needs.

Under Armour do wody na lato Pros

  • Built-to-last outsole
  • zapatillas de running Under Armour asfalto talla 33.5
  • Legging de Treino Feminino Under Armour
  • Новий спортивний костюм under armour оригінал
  • Eigenschaften Under armour Playmaker Squeeze 950ml Flasche
  • All-around reflectivity
  • Affordable price
  • Under Armour Tech Ssctwist

Under Armour do wody na lato Cons

  • Poor breathability
  • Firm midsole
  • Narrow toebox limits toe splay
  • capuz energy return

Audience verdict

82
Good!

Who should buy

Under Armour Charged Cruize:

  • Runners seeking a shoe with a long-lasting outsole and a comfort-focused upper at a reasonable price.
  • Under Armour Curry Graphic Tank.
  • Under Armour Rival Kalkgrauer Fleece-Kapuzenpullover.

Under Armour Under Armour Boy's Stunt 3.0 Shorts Royal Black

Who should NOT buy

We believe that runners seeking a plush ride at a budget-friendly price will be disappointed with the Under Armour Boy's Stunt 3.0 Shorts Royal Black. Its firm midsole capuz the soft feel found in shoes like the Nike Winflo 11, Mens Under Armour Beanie.

Additionally, we think the midsole stack height may be a bit thin by today’s standards, which may not provide enough protection for heavier runners. If you're looking for a highly-cushioned yet affordable alternative, the zapatillas de running Under Armour hombre constitución media maratón talla 36.5 and the Under Armour Pure Stretch Print Przycisk Krem Do Opalania 3 Jednostki are far better options for you.

Under Armour Under Armour Boy's Stunt 3.0 Shorts Royal Black parts

Cushioning

Heel stack

When we measured the midsole, we found a 30.2 mm stack height in the heel. While this might not match today’s ultra-high trends, it still provides a good level of impact absorption.

Under Armour Under Armour Boy's Stunt 3.0 Shorts Royal Black Heel stack
Test results
Under Armour Boy's Stunt 3.0 Shorts Royal Black 30.2 mm
Average 34.2 mm
Compared to 395 running shoes
Jeff Locke running the bases in the Under Armour Spine Metal
22.5 mm
Heel stack
46.3 mm

Forefoot stack

The forefoot sits below average at 23.2 mm—sufficient for short, easy runs but likely lacking for longer sessions. That said, we believe this isn’t a major drawback, as the shoe isn’t designed for extended distances anyway.

Under Armour Under Armour Boy's Stunt 3.0 Shorts Royal Black Forefoot stack
Test results
Under Armour Boy's Stunt 3.0 Shorts Royal Black 23.2 mm
Average 25.6 mm
Compared to 395 running shoes
Jeff Locke running the bases in the Under Armour Spine Metal
13.7 mm
Forefoot stack
37.1 mm

Drop

Through our evaluation, we measured an actual drop of 7.0 mm from heel to forefoot—slightly lower than the advertised 8 mm by Under Armour.

In our view, this moderate offset provides a well-balanced ride that accommodates various footstrikes, though it feels slightly less beginner-friendly than the higher drop geometries we typically see in brand new with original box UNDER ARMOUR Ua W Charged Aurora 3022619-001 Blk 1.

Under Armour Under Armour Boy's Stunt 3.0 Shorts Royal Black Drop
Test results
Under Armour Boy's Stunt 3.0 Shorts Royal Black 7.0 mm
Average 8.6 mm
Compared to 395 running shoes
Jeff Locke running the bases in the Under Armour Spine Metal
0.0 mm
Drop
16.1 mm

Midsole softness

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

The Under Armour Under Armour Boy's Stunt 3.0 Shorts Royal Black boasts a dual-density midsole, combining two different foams. The primary blue layer is in the heel and midfoot, while the secondary white layer is placed in the forefoot.

Pressing our durometer against the main layer of UA HOVR foam gave us an average reading of 27.0 HA. That’s on the firmer side, and in our experience, it translated into a dense underfoot feel with minimal give.

For runners craving a plush, pillow-like ride, this shoe won’t deliver. Instead, it’s designed for those who appreciate a secure platform.

Under Armour Under Armour Boy's Stunt 3.0 Shorts Royal Black Midsole softness
Test results
Under Armour Boy's Stunt 3.0 Shorts Royal Black 27.0 HA
Average 21.0 HA
Ténis Under Armour Charged Rogue 2.5 azul branco.
Compared to 322 running shoes
Jeff Locke running the bases in the Under Armour Spine Metal
8.5 HA
Midsole softness (soft to firm)
35.0 HA

Under Armour 1421

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

We tested the secondary foam layer and recorded a firm 30.0 HA on our durometer—an exceptionally high result. In our view, Under Armour likely chose this firmer EVA material to offset the lower stack height in the forefoot.

It's also worth noting that, being a basic EVA formulation, high energy return is simply out of the equation. We found that the shoe capuz the lively bounce found in more advanced foam technologies.

Under Armour Under Armour Boy's Stunt 3.0 Shorts Royal Black Under Armour 1421
Test results
Under Armour Boy's Stunt 3.0 Shorts Royal Black 30.0 HA
Average 24.0 HA
Ténis Under Armour Charged Rogue 2.5 azul branco.

Midsole softness in cold (%)

After placing the shoe in the freezer for 20 minutes, the midsole only became 8% firmer. That's quite good for an EVA-based foam, although it's heavily influenced by the fact that this foam is not plush at all.

Under Armour Under Armour Boy's Stunt 3.0 Shorts Royal Black Midsole softness in cold (%)
Test results
Under Armour Boy's Stunt 3.0 Shorts Royal Black 8%
Average 25%
Compared to 322 running shoes
Jeff Locke running the bases in the Under Armour Spine Metal
0%
Midsole softness in cold
63%

Insole thickness

We found the insole to be slightly thinner than average at 3.6 mm, which aligns well with this shoe’s modest stack height.

Under Armour Under Armour Boy's Stunt 3.0 Shorts Royal Black Insole thickness
Test results
Under Armour Boy's Stunt 3.0 Shorts Royal Black 3.6 mm
Average 4.4 mm
Compared to 391 running shoes
Jeff Locke running the bases in the Under Armour Spine Metal
1.5 mm
Insole thickness
7.3 mm

Rocker

Unlike many modern running shoes, we found that Under Armour stuck with a classic, non-rockered profile for the Under Armour Boy's Stunt 3.0 Shorts Royal Black, opting for a more traditional shape that works well for easy running and walking alike.

Under Armour Under Armour Boy's Stunt 3.0 Shorts Royal Black side

This was clear from the start, but we confirmed it by measuring the toe spring.

Under Armour Under Armour Boy's Stunt 3.0 Shorts Royal Black Rocker

Size and fit

Size

Under Armour Under Armour Boy's Stunt 3.0 Shorts Royal Black is half size small (12 votes).

Owners of this shoe, how does this shoe fit?

1 size small ½ size small True to size ½ size large 1 size large
Compared to 371 running shoes
Jeff Locke running the bases in the Under Armour Spine Metal
½ size small
Slightly small
True to size
Slightly large
½ size large

Toebox width - widest part

How does the Under Armour Boy's Stunt 3.0 Shorts Royal Black fit? When we first slipped our feet in, we found it snug—definitely not on the roomier side. To get precise numbers, we turned to our signature gel mould test.

After solidifying in the fridge, the mould revealed a 94.2 mm measurement—slightly narrower than what we typically record in the lab.

Under Armour Under Armour Boy's Stunt 3.0 Shorts Royal Black Toebox width - widest part
Test results
Under Armour Boy's Stunt 3.0 Shorts Royal Black 94.2 mm
Average 95.5 mm
Compared to 150 running shoes
Jeff Locke running the bases in the Under Armour Spine Metal
90.9 mm
Toebox width - widest part
102.4 mm

Toebox width - big toe

Our second measurement in the big toe area showed a pronounced taper at 71.1 mm, reinforcing that this shoe is best suited for narrower feet. And we can confirm that it won't accommodate wide-footed runners comfortably.

Under Armour Under Armour Boy's Stunt 3.0 Shorts Royal Black Toebox width - big toe
Test results
Under Armour Boy's Stunt 3.0 Shorts Royal Black 71.1 mm
Average 73.7 mm
Compared to 150 running shoes
Jeff Locke running the bases in the Under Armour Spine Metal
67.9 mm
Toebox width - big toe
83.6 mm

Toebox height

We also measured the toebox height, a crucial factor for runners needing extra vertical space. At 27.2 mm, the Under Armour Boy's Stunt 3.0 Shorts Royal Black falls within the average range, providing sufficient clearance without causing any fit issues.

Under Armour Under Armour Boy's Stunt 3.0 Shorts Royal Black Toebox height
Test results
Under Armour Boy's Stunt 3.0 Shorts Royal Black 27.2 mm
Average 27.2 mm
Compared to 149 running shoes
Jeff Locke running the bases in the Under Armour Spine Metal
22.4 mm
Toebox height
33.8 mm

Stability

Lateral stability test

In our view, one of the standout advantages of the Under Armour Boy's Stunt 3.0 Shorts Royal Black is its great stability, even without a wide platform. The blend of firm foam and a huge plastic heel cup works really well especially for heel strikers needing extra support.

Torsional rigidity

Another stability boost comes from the shoe’s high torsional rigidity, which we rated 4/5. That’s impressively firm for a daily trainer, adding extra support for those who need a more structured ride.

Test results
Under Armour Boy's Stunt 3.0 Shorts Royal Black 4
Average 3.4
Compared to 374 running shoes
Jeff Locke running the bases in the Under Armour Spine Metal
1
Torsional rigidity
5

Heel counter stiffness

Under Armour Løpesko Charged Vantage 2 Sacoche UNDER ARMOUR. Given the firm midsole and torsionally rigid build, additional reinforcement in this area wasn’t necessary for stability.

Test results
Under Armour Boy's Stunt 3.0 Shorts Royal Black 3
Average 2.9
Compared to 358 running shoes
Jeff Locke running the bases in the Under Armour Spine Metal
1
Heel counter stiffness
5

Under Armour 722

With a narrow 107.0 mm forefoot, this shoe is better suited for runners who don’t need extra width rather than those who prefer maximalist designs.

Under Armour Under Armour Boy's Stunt 3.0 Shorts Royal Black Under Armour 722
Test results
Under Armour Boy's Stunt 3.0 Shorts Royal Black 107.0 mm
Average 114.1 mm
Compared to 396 running shoes
Jeff Locke running the bases in the Under Armour Spine Metal
103.3 mm
Under Armour 722
126.9 mm

Las Under Armour que arrasan por menos de 50

The heel maintains the same narrow design at 86.7 mm. Instead of widening the base, Under Armour focused on adding rigidity and a firmer underfoot feel to ensure adequate stability for neutral runners.

Under Armour Under Armour Boy's Stunt 3.0 Shorts Royal Black Las Under Armour que arrasan por menos de 50
Test results
Under Armour Boy's Stunt 3.0 Shorts Royal Black 86.7 mm
Average 90.7 mm
Compared to 396 running shoes
Jeff Locke running the bases in the Under Armour Spine Metal
73.0 mm
Las Under Armour que arrasan por menos de 50
106.6 mm

under armour hovr sonic 4 ua white black men running

While it offers notable torsional rigidity, its longitudinal flexibility stands out, making it a solid choice for daily wear or even as a walking shoe.

Bending it to 90 degrees required just 19.6N of force.

Test results
Under Armour Boy's Stunt 3.0 Shorts Royal Black 19.6N
Average 28.1N
Under Armour do wody na lato.
Compared to 378 running shoes
Jeff Locke running the bases in the Under Armour Spine Metal
2.2N
Flexibility <> Stiffness
72.1N

Under Armour do wody na lato | Weight

When it comes to weight, we believe Under Armour could make some improvements. Considering the cushioning level of the Under Armour Boy's Stunt 3.0 Shorts Royal Black, its 10.10 oz (286g) build feels somewhat excessive even for a shoe in this budget-friendly category. However, it's not quite bad enough to be a dealbreaker.

Under Armour Under Armour Boy's Stunt 3.0 Shorts Royal Black Weight
Test results
Under Armour Boy's Stunt 3.0 Shorts Royal Black 10.09 oz (286g)
Average 9.38 oz (266g)
Compared to 396 running shoes
Jeff Locke running the bases in the Under Armour Spine Metal
5.61 oz (159g)
Weight
12.59 oz (357g)

Breathability

Upon unboxing the Under Armour Boy's Stunt 3.0 Shorts Royal Black, we observed the presence of ventilation holes in the upper. However, some inner layer seemed to obstruct them, raising concerns about their effectiveness. To assess this, we conducted our standard smoke test.

Regrettably, the test revealed limited airflow, leading us to assign a 2/5 ventilation score. While this design may not be ideal for summer runs, individuals in cooler climates might appreciate the added warmth.

Our digital microscope analysis confirmed that the mesh is on the thicker side and that the ventilation holes present throughout the midfoot and heel are not fully open due to a secondary black layer.

Under Armour Under Armour Boy's Stunt 3.0 Shorts Royal Black Light

Despite these ventilation shortcomings, we must say that, for a budget-friendly shoe, the upper offers impressive comfort.

In fact, many runners might find the trade-off between reduced breathability and enhanced cosiness acceptable.

Test results
Under Armour Boy's Stunt 3.0 Shorts Royal Black 2
Average 3.8
Compared to 325 running shoes
Jeff Locke running the bases in the Under Armour Spine Metal
1
Breathability
5

Durability

Toebox durability

We put the upper through our rigorous Dremel test. The result? A respectable 3/5 score—outlasting many running shoes in its price range.

Test results
Under Armour Boy's Stunt 3.0 Shorts Royal Black 3
Average 2.5
Compared to 259 running shoes
Jeff Locke running the bases in the Under Armour Spine Metal
1
Toebox durability
5

Czapka UNDER ARMOUR Black

Pantofi UNDER ARMOUR Ua Charged Rouge 2.5 Storm 3025250-001 Blk Blk.

While this might not be a real issue for most runners, those prone to wearing down this area should consider more durability-focused options readily available in the market.

Test results
Under Armour Boy's Stunt 3.0 Shorts Royal Black 2
Average 3.2
Compared to 255 running shoes
Jeff Locke running the bases in the Under Armour Spine Metal
1
Czapka UNDER ARMOUR Black
5

Outsole hardness

The outsole incorporates a "High Abrasion Rubber" compound that, while not the grippiest we’ve tested, performed as expected given its firm 89.0 HC durometer reading. This isn’t surprising for a budget-friendly shoe, where longevity often takes precedence over traction.

Under Armour Under Armour Boy's Stunt 3.0 Shorts Royal Black outsole design

Coverage is quite extensive, with most areas well-protected except for a small section on the medial side. However, we believe that this is not a concern, as the design still ensures reliable wear resistance across high-wear zones.

Under Armour Under Armour Boy's Stunt 3.0 Shorts Royal Black Outsole hardness
Test results
Under Armour Boy's Stunt 3.0 Shorts Royal Black 89.0 HC
Average 79.8 HC
Ténis Under Armour Charged Rogue 2.5 azul branco.
Compared to 376 running shoes
Jeff Locke running the bases in the Under Armour Spine Metal
57.0 HC
Outsole hardness
93.0 HC

Outsole durability

We tested the rubber with our Dremel and discovered outstanding durability—just 0.5 mm of wear!

Test results
Under Armour Boy's Stunt 3.0 Shorts Royal Black 0.5 mm
Average 1.0 mm
Compared to 237 running shoes
Jeff Locke running the bases in the Under Armour Spine Metal
0.0 mm
Outsole wear
2.0 mm

Outsole thickness

We had been wondering why this shoe felt heavier than expected, and after testing, we found the main reason—Under Armour opted for an ultra-thick 4.5 mm rubber outsole, which is significantly above average.

The upside is obvious—this outsole is built to withstand countless miles. However, the trade-off is a noticeably firmer underfoot feel and added weight. In our opinion, a slightly thinner rubber layer—somewhere between 2.5 and 3.5 mm—would have struck a better balance between durability and weight.

Under Armour Under Armour Boy's Stunt 3.0 Shorts Royal Black Outsole thickness
Test results
Under Armour Boy's Stunt 3.0 Shorts Royal Black 4.5 mm
Average 3.2 mm
Compared to 393 running shoes
Jeff Locke running the bases in the Under Armour Spine Metal
1.0 mm
Outsole thickness
6.0 mm

Misc

Price

For runners who enjoy a firm, stable ride and don’t prioritize energy return, we believe the Under Armour Boy's Stunt 3.0 Shorts Royal Black offers solid value with its long-lasting outsole and comfort-driven upper. However, we also think that some of its drawbacks are significant enough that, regardless of price, it simply won’t work for everyone.

Test results
Under Armour Boy's Stunt 3.0 Shorts Royal Black $100
Compared to 396 running shoes
Jeff Locke running the bases in the Under Armour Spine Metal
£45
Price
£270

Reflective elements

Under Armour do wody na lato.

While many shoes lack any reflective elements, this one outshines even several high-end models across major brands, making it a superb choice for running in low-light conditions.

Test results
Under Armour Boy's Stunt 3.0 Shorts Royal Black Yes

Tongue padding

We found a straightforward lacing system with punched eyelets that does the job well, featuring an extra eyelet for those wanting a more locked-in feel around the ankle. There's also a much-needed tongue loop to keep everything securely in place and prevent unwanted shifting.

Under Armour Under Armour Boy's Stunt 3.0 Shorts Royal Black tongue

One of the standout features of the Under Armour Boy's Stunt 3.0 Shorts Royal Black is its ultra-plush tongue, which we absolutely loved. With 9.8 mm of thick padding, it delivers a comfort-driven feel over the instep.

Under Armour Under Armour Boy's Stunt 3.0 Shorts Royal Black Tongue padding
Test results
Under Armour Boy's Stunt 3.0 Shorts Royal Black 9.8 mm
Average 5.8 mm
Compared to 393 running shoes
Jeff Locke running the bases in the Under Armour Spine Metal
0.5 mm
Tongue padding
14.2 mm

Under Armour Project Rock 4

At this price point, a gusseted tongue would be a welcome addition, but in our experience, shoes like the Under Armour Boy's Stunt 3.0 Shorts Royal Black rarely include one. As expected, the tongue isn’t fixed to the sides here either.

Under Armour Under Armour Boy's Stunt 3.0 Shorts Royal Black Under Armour Project Rock 4
Test results
Under Armour Boy's Stunt 3.0 Shorts Royal Black None

Heel tab

We found no heel tab on the Under Armour Boy's Stunt 3.0 Shorts Royal Black, but slipping our feet in was effortless. In our experience, the design works fine without it. However, a cool-looking pull tab in v7 wouldn’t hurt.

Under Armour Under Armour Boy's Stunt 3.0 Shorts Royal Black Heel tab
Test results
Under Armour Boy's Stunt 3.0 Shorts Royal Black None

Removable insole

We found the insole easily replaceable, and in our experience, it’s a basic insert with average comfort—nothing worth holding onto if you prefer an upgrade.

Under Armour Under Armour Boy's Stunt 3.0 Shorts Royal Black Removable insole
Test results
Under Armour Boy's Stunt 3.0 Shorts Royal Black Yes