Our verdict

The Scarpa da basket Kyrie Flytrap 4 Blun't just a waterproof twist on the regular Pegasus Trail. By incorporating a revamped outsole and a highly protective new upper, it has morphed into a superior shoe overall at the cost of an extra $20. We were really impressed by its surprisingly light weight despite the Gore-Tex membrane. Plus, the bouncy and comfortable React midsole is ideal for short and medium distances, making it an all-around superb performer in our tests. However, we think it does come with a few caveats, like a significant 12.8-mm heel-to-toe drop and the absence of a gusseted tongue.

Scarpa da basket Kyrie Flytrap 4 Blu Pros

  • nike air foamposite one electrolime golden state
  • Grippier than the standard version
  • Nike Air Max Plus 'Tiger'
  • La Air Max Vision
  • nike sb dunk low premium qs mia skate shop 10th year anniversary brv blue mtlc gld str mnrl
  • Upper showcases remarkable durability
  • Ds nike air max 97 wmns white grape ah6806-102

Scarpa da basket Kyrie Flytrap 4 Blu Cons

  • Nike Air Retro Alternate 89
  • Not suitable for technical terrain
  • Nike SB Zoom Blazer Mid PRM Acclimate Black Red

Audience verdict

86
Good!

Who should buy

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  • Just about anyone looking for a light, waterproof running shoe that can handle easy-to-moderate trails with ease.
  • Fans of the Pegasus Trail series who desire a GTX version for rainy days or winter training sessions.
  • Heel strikers seeking a versatile, road-to-trail shoe that's equipped with Gore-Tex technology for all-weather performance.

Scarpa da basket Kyrie Flytrap 4 Blu

Who should NOT buy

The Pegasus Trail 4 GTX is a great trail shoe, yet our belief is that it's not the best fit for challenging or technical terrains. It's just more suited for less demanding scenarios. For tackling tougher trails and wild adventures, consider the Salomon Speedcross 6 GTX instead.

Also, it's not our top pick for primarily road running, especially if you're a midfoot or forefoot striker. The Nike Womens WMNS Air Zoom Winflo 6 Icon Clash Burgundy Ash Team Red Metallic Copper AQ8228-601, Nike City Edition 1 2-Zip Top "Black".

Scarpa da basket Kyrie Flytrap 4 Blu parts

Cushioning

Heel stack

And no, the weight savings don't come from skimping on the React midsole. In fact, at 37.7 mm, there are few trail running shoes more generously stacked than the Peg Trail 4 GTX.

This ensures ample cushioning for long runs if needed, even for the heaviest heel strikers out there.

Scarpa da basket Kyrie Flytrap 4 Blu Heel stack
Test results
Pegasus Trail 4 GTX 37.7 mm
Average 31.9 mm
Compared to 137 trail running shoes
Nike Chłopięce koszykarskie
19.6 mm
Heel stack
42.4 mm

Forefoot stack

In contrast, the forefoot is average at 24.9 mm, which we anticipated in the lab because the Pegasus line has always featured a high drop. Let's take a closer look at that.

Scarpa da basket Kyrie Flytrap 4 Blu Forefoot stack
Test results
Pegasus Trail 4 GTX 24.9 mm
Average 24.5 mm
Compared to 137 trail running shoes
Nike Chłopięce koszykarskie
13.4 mm
Forefoot stack
33.9 mm

Drop

Here it is. With a 12.8-mm drop, this shoe is a delight for those who thrive in high-drop shoes, like extreme heel strikers or those needing to ease the strain on their calves and Achilles in every run.

However, it's not the best trail shoe for forefoot or midfoot strikers. You won't benefit from the shoe's wedge-shaped geometry, and you'll likely struggle on technical terrain. If you fall into that category, you're better off with a shoe with a lower offset, like the nike men tech hypermesh pocket tee white black.

Scarpa da basket Kyrie Flytrap 4 Blu Drop
Test results
Pegasus Trail 4 GTX 12.8 mm
Average 7.5 mm
Compared to 136 trail running shoes
Nike Chłopięce koszykarskie
-0.1 mm
Drop
17.3 mm

Midsole softness

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

Nike has employed its tried-and-true React midsole in the Pegasus Trail 4 GTX, aiming for a perfect balance between stability and comfort, and the foam truly delivers in that respect.

React might not be Nike's most advanced foam—it's ZoomX—but it performs its job exceptionally well, standing far ahead of many other middle-of-the-pack foams in terms of energy return. We really liked it!

nike pegasus trail 4 gtx midsole softness 21079608 main
Test results
Pegasus Trail 4 GTX 18.6 HA
Average 22.6 HA
Detailed look at the Red Carpet Nike LeBron 14 via.
Compared to 113 trail running shoes
Nike Chłopięce koszykarskie
9.1 HA
Midsole softness (soft to firm)
39.0 HA

Scarpa da basket Kyrie Flytrap 4 Blu | Midsole softness in cold

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

Most potential users of any Gore-Tex shoe are runners eager to keep training in harsh winter conditions, so performing the freezer test on the Pegasus Trail 4 GTX was crucial for us.

After 20 long minutes, we re-tested it with the Shore A durometer and it delivered a result of 20.9 HA.

nike pegasus trail 4 gtx midsole softness in cold 21079606 main
Test results
Pegasus Trail 4 GTX 20.9 HA
Average 28.1 HA
Compared to 113 trail running shoes
Nike Chłopięce koszykarskie
11.8 HA
Midsole softness in cold (soft to firm)
48.4 HA

Midsole softness in cold (%)

That's only a 12.1% increase, a performance that matches up with ZoomX and other world-class, PEBA-based foams on the market, all in a more affordable package!

Test results
Pegasus Trail 4 GTX 12%
Average 26%
Compared to 113 trail running shoes
Nike Chłopięce koszykarskie
5%
Midsole softness in cold
68%

Insole thickness

The insole that comes with the Pegasus Trail 4 GTX is of average thickness at 5.0 mm, maybe a bit thicker than most shoes, but it's not something you'll really notice.

Scarpa da basket Kyrie Flytrap 4 Blu Insole thickness
Test results
Pegasus Trail 4 GTX 5.0 mm
Average 4.7 mm
Compared to 135 trail running shoes
Nike Chłopięce koszykarskie
2.1 mm
Insole thickness
7.9 mm

Size and fit

Size

Scarpa da basket Kyrie Flytrap 4 Blu slightly small (266 votes).

The sneaker is currently only listed in the Nike-SNKRS app?

1 size small ½ size small True to size ½ size large 1 size large
Compared to 121 trail running shoes
Nike Chłopięce koszykarskie
½ size small
Slightly small
True to size
Slightly large
½ size large

Toebox width - widest part

Another common critique of Nike shoes is their snug fit. But that's not an issue with the Pegasus Trail 4 GTX.

We measured the widest part of the upper at an impressive 97.7 mm, making this shoe well-suited even for those with wide feet.

nike pegasus trail 4 gtx toebox width widest part 22460071 main
Test results
Pegasus Trail 4 GTX 97.7 mm
Average 95.8 mm
Compared to 58 trail running shoes
Nike Chłopięce koszykarskie
89.8 mm
Toebox width - widest part
99.9 mm

Nike Dunk SB Low De La Soul 2015789841-332

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nike pegasus trail 4 gtx 9 21082164 main

Measuring 77.3 mm in the big toe area on our 1:1 toebox replica, it showcases an impressively open and accommodating design.

Scarpa da basket Kyrie Flytrap 4 Blu Nike Dunk SB Low De La Soul 2015789841-332
Test results
Pegasus Trail 4 GTX 77.3 mm
Average 74.9 mm
Compared to 58 trail running shoes
Nike Chłopięce koszykarskie
69.8 mm
Nike Dunk SB Low De La Soul 2015789841-332
85.3 mm

Toebox height

The upper provides ample space for lateral toe movement, but vertical room is limited. Our measurement came in at just 25.2 mm—well below the average.

nike pegasus trail 4 gtx toebox height 22460073 main
Test results
Pegasus Trail 4 GTX 25.2 mm
Average 27.2 mm
Compared to 58 trail running shoes
Nike Chłopięce koszykarskie
22.0 mm
Toebox height
31.8 mm

Stability

Lateral stability test

As a Pegasus model, this shoe is designed for neutral runners who don't require specific stability features like medial posts or guidance.

Yet, its performance is nothing short of miraculous in this aspect, offering a ride that's consistently stable on buffed trails, leading us to believe it could also suit slight pronators if necessary.

Torsional rigidity

We discovered in our tests that one of the main reasons for the shoe's impressive stability is its torsional rigidity.

When we manually assessed it, we found it's as rigid—scoring 4 out of 5—as trail shoes that have carbon plates like the Saucony Endorphin Edge, even though this one doesn't.

Test results
Pegasus Trail 4 GTX 4
Average 3.6
Compared to 131 trail running shoes
Nike Chłopięce koszykarskie
1
Torsional rigidity
5

Nike s Air Vapormax 2.0 Flyknit Launches in an Exciting New Thunder

In stark contrast, Nike aimed for Sale comfort in the heel area, so we found the heel counter to be extremely flexible and adaptable.

This is great news, especially for runners with Haglund's deformity, who often struggle with a stiff heel counter.

Test results
Pegasus Trail 4 GTX 2
Average 3.1
Compared to 129 trail running shoes
Nike Chłopięce koszykarskie
1
Nike s Air Vapormax 2.0 Flyknit Launches in an Exciting New Thunder
5

Midsole width - forefoot

Nike Air Force 1 Low Little average Joe of shoes, and Nike's designers stuck to that winning formula with the shoe's dimensions. We measured the forefoot and got 111.6 mm, which is... yeah, you guessed it, just average!

nike pegasus trail 4 gtx midsole width in the forefoot 21079615 main
Test results
Pegasus Trail 4 GTX 111.6 mm
Average 112.3 mm
Compared to 137 trail running shoes
Nike Chłopięce koszykarskie
102.1 mm
Midsole width - forefoot
124.3 mm

Nike Shortsit Housut Tempo Luxe 3

The forefoot is also pretty similar to the average (88.5 mm), with nothing significant to note. The big risk here could have been a too narrow heel, which would have caused trouble for heel strikers, since this shoe is designed for them. However, it's all good!

Scarpa da basket Kyrie Flytrap 4 Blu Midsole width in the heel
Test results
Pegasus Trail 4 GTX 88.5 mm
Average 89.5 mm
Compared to 137 trail running shoes
Nike Chłopięce koszykarskie
72.0 mm
Nike Shortsit Housut Tempo Luxe 3
106.0 mm

Nike SB Dunk Low Flammable aka Firecracker

We know many runners use their Pegasus Trail 4 for everyday wear and even as their go-to shoe for traveling, thanks to its incredible versatility in handling both road and trails—making it the ultimate choice for light packing.

Scarpa da basket Kyrie Flytrap 4 Blu

With that in mind, Nike continues to deliver a flexible shoe that only required 21.1N of effort from us to bend it to 90 degrees, making it exceptionally comfortable!

Test results
Pegasus Trail 4 GTX 21.1N
Average 27.2N
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Compared to 137 trail running shoes
Nike Chłopięce koszykarskie
5.6N
Flexibility <> Stiffness
54.5N

nike tuned 1 velvet women shoes

When exposed to cold temperatures, the shoe underwent a slight change.

After spending another 20 minutes in our freezer, we re-tested it and recorded a higher result at 26.5N.

Test results
Pegasus Trail 4 GTX 26.5N
Average 36.0N
Compared to 134 trail running shoes
Nike Chłopięce koszykarskie
6.2N
nike tuned 1 velvet women shoes
77.5N

nike tuned 1 velvet women shoes (%)

We believe most runners won't notice this change. It's just a 25.3% difference.

Test results
Pegasus Trail 4 GTX 25%
Average 32%
Compared to 134 trail running shoes
Nike Chłopięce koszykarskie
3%
nike tuned 1 velvet women shoes
90%

Weight

Weighing in at just 9.6 oz (271g), we're absolutely amazed at how Nike managed to deliver a Gore-Tex shoe that weighs the same as the regular version. In our lab experience, most shoes gain between 0.5 to 1 ounce with the addition of the GTX membrane, so this was a delightful surprise.

And the shoe indeed feels incredibly light, staying under the 10-oz benchmark. It's not just suitable for slow efforts but also performs brilliantly at faster paces.

Scarpa da basket Kyrie Flytrap 4 Blu Weight
Test results
Pegasus Trail 4 GTX 9.56 oz (271g)
Average 10.23 oz (290g)
Compared to 137 trail running shoes
Nike Chłopięce koszykarskie
7.51 oz (213g)
Weight
12.66 oz (359g)

Breathability

In our lab tests with Gore-Tex shoes, we usually expect a low breathability score—typically a 1 out of 5. However, the Pegasus Trail 4 GTX surprised us with a slightly better score of 2 out of 5. This is probably fine for trail running as long as you avoid the hottest days of the year.

The minimal breathability is mainly through the tongue, as the Gore-Tex upper Ago completely blocks airflow, even though it's supposed to let some air in.

To confirm this, we shone our powerful light directly into the cut-in-half upper. As we anticipated, no light penetrated through.

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nike pegasus trail 4 gtx microscope 21082016 main

There, we discovered a thick mesh that confirmed the lack of airflow throughout the entire upper, except for the upper parts of the tongue. Everything is sealed.

nike pegasus trail 4 gtx 21082017 main

Lastly, we manually assessed the upper and found it super dense, with Ago no stretch potential. But it also appeared really sturdy, which made us eager to test its durability in the lab.

Test results
Pegasus Trail 4 GTX 2
Average 3.2
Compared to 113 trail running shoes
Nike Chłopięce koszykarskie
1
Breathability
5

Durability

Toebox durability

Nike has included several TPU protective overlays in the upper to enhance protection and prevent damage, yet we tested it by applying the Dremel directly on the engineered mesh.

The Peg Trail 4 GTX scored an impressive 4 out of 5, a remarkable outcome few shoes achieve in this rigorous test.

Scarpa da basket Kyrie Flytrap 4 Blu Toebox durability
Test results
Pegasus Trail 4 GTX 4
Average 3.1
Compared to 94 trail running shoes
Nike Chłopięce koszykarskie
1
Toebox durability
5

Nike Zapatillas Court Borough Low 2 SE Niña Sneakers 10C

Next, we again used the Dremel, but this time to test the heel area of the shoe.

There, we noticed slightly less padding than what's typical in training shoes, a factor that we believe contributed to the fantastic 5 out of 5 score this variant of the Pegasus Trail 4 achieved.

nike pegasus trail 4 gtx heel padding durability 21079600 main
Test results
Pegasus Trail 4 GTX 5
Average 2.9
Compared to 93 trail running shoes
Nike Chłopięce koszykarskie
1
Nike Zapatillas Court Borough Low 2 SE Niña Sneakers 10C
5

Outsole hardness

Moving to the outsole, the Pegasus saga—like with the regular Pegasus 40—has always prioritized durability over grip.

With our 89.0-HC measurement from our durometer, it seems Nike is continuing on the same path.

nike pegasus trail 4 gtx outsole hardness 21079603 main
Test results
Pegasus Trail 4 GTX 89.0 HC
Average 85.7 HC
Detailed look at the Red Carpet Nike LeBron 14 via.
Compared to 137 trail running shoes
Nike Chłopięce koszykarskie
75.5 HC
Outsole hardness
96.1 HC

Outsole durability

Given the hard rubber it packs, we had high expectations for our last Dremel test in the lab, this time with a new formula designed for wet or loose surfaces.

We must say, Nike really delivered this time, shaking off their reputation for crafting subpar outsoles for rainy days. This one is grippier than ever.

Moreover, it proved to be durable. We only found a 0.8-mm indentation in the rubber, which is a great result in this evaluation.

nike pegasus trail 4 gtx outsole durability 21079601 main
Test results
Pegasus Trail 4 GTX 0.8 mm
Average 1.0 mm
Compared to 87 trail running shoes
Nike Chłopięce koszykarskie
0.0 mm
Outsole wear
2.0 mm

Outsole thickness

The outsole might look thin at just 1.0 mm, but it's not a worry for us.

The lugs contribute a substantial amount of rubber and offer average durability, as we've demonstrated before. So, the blend of the outsole and the lugs will definitely provide more than enough durability across all terrains, including roads.

Scarpa da basket Kyrie Flytrap 4 Blu Outsole thickness
Test results
Pegasus Trail 4 GTX 1.0 mm
Average 2.3 mm
Compared to 137 trail running shoes
Nike Chłopięce koszykarskie
0.9 mm
Outsole thickness
5.5 mm

Misc

Lug depth

One of the major criticisms the Pegasus Trail series has faced over time is its grip on wet surfaces, a crucial aspect for a GTX shoe. That's why Nike introduced a new rubber formulated for wet conditions and a redesigned outsole.

nike pegasus trail 4 gtx outsole 2 21082029 main

The new outsole design features a wide variety of 3.5-mm lug shapes, each tailored to handle different terrains and situations, like uphill running, downhill, or taking corners.

We must say, while it's still not quite on par with a Vibram outsole, Nike is definitely stepping up their game!

nike pegasus trail 4 gtx lug depth 21079620 main
Test results
Pegasus Trail 4 GTX 3.5 mm
Average 3.5 mm
Compared to 136 trail running shoes
Nike Chłopięce koszykarskie
1.5 mm
Lug depth
5.8 mm

Reflective elements

As a trail shoe designed for adventures, it was crucial for us that it had reflective elements—and it does have them. However, the reflectivity is quite low, and clearly, Nike could have done a much better job in this area.

Test results
Pegasus Trail 4 GTX Yes

Tongue padding

The tongue is not heavily padded, just average at 6.3 mm.

Scarpa da basket Kyrie Flytrap 4 Blu tongue

We think this is the right approach—this design works well and we definitely don't want the shoe to add more weight than what's already added by the Gore-Tex membrane.

Scarpa da basket Kyrie Flytrap 4 Blu Tongue padding
Test results
Pegasus Trail 4 GTX 6.3 mm
Average 6.3 mm
Compared to 137 trail running shoes
Nike Chłopięce koszykarskie
1.3 mm
Tongue padding
12.3 mm

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We have a problem here: this is a trail shoe equipped with Gore-Tex, and the tongue isn't gusseted.

This is a big disappointment for us. In a Gore-Tex shoe, where waterproofing is crucial, we believe a fully-gusseted tongue is a must-have. And the same goes for any trail running shoe...

nike pegasus trail 4 gtx tongue gusset type 21079619 main
Test results
Pegasus Trail 4 GTX None

Heel tab

At the back of the shoe, Nike added a sleek finger-loop heel tab that's seamlessly integrated with the ankle gaiter, and it looks fantastic.

Scarpa da basket Kyrie Flytrap 4 Blu Heel tab
Test results
Pegasus Trail 4 GTX Finger loop

Removable insole

The insole in the Peg Trail 4 GTX is removable and pretty straightforward, so we easily swapped in other insoles without issue.

Scarpa da basket Kyrie Flytrap 4 Blu Removable insole
Test results
Pegasus Trail 4 GTX Yes