Our verdict

The Saucony Peregrine 15 keeps everything we liked about past versions and adds real improvements. We were happy with the softer foam (it feels easier on the legs) and our tests showed it gives back more energy too. The upper felt strong and comfortable on our trail runs, and the low-drop setup is still great for midfoot and forefoot strikers. Just keep in mind the toebox is on the narrow side, which might not work for everyone.

Pros

  • Plush PWRRUN midsole
  • Improved energy return
  • Versatile 4.7-mm lugs
  • Ready for hiking
  • Reasonable price
  • Premium PWRRUN+ insole
  • Good fit for trail running
  • Still lightweight for its size

Cons

  • Narrow toebox
  • Low drop not ideal for heel strikers
  • Could use better breathability

Audience verdict

79
Decent!

Who should buy

After testing it on trails and in the lab, we found that the Saucony Peregrine 15 is great for:

  • Runners looking for a no-frills, low-drop trail shoe at a fair price.
  • Those wanting one trail shoe for everything: from smooth paths to rocky terrain.
  • Peregrine fans ready to upgrade. It delivers with a softer midsole and thoughtful updates, all at the same price.

Saucony Peregrine 15

Who should NOT buy

We believe that the biggest drawback of the Peregrine 15 is its narrow, tapered toebox. In our experience, this can become a problem during multi-hour runs, especially for wide-footed runners or those prone to toe discomfort. For a more foot-shaped fit, we suggest the Topo Ultraventure 4 or the zero-drop Altra Lone Peak 9.

We’re also convinced that the 4 mm drop won’t suit heavy rearfoot strikers. If that sounds like you, we believe shoes like the ASICS Gel Trabuco 13 or the Nike Wildhorse 10 offer a more heel-striker-friendly alternative.

Saucony Peregrine 15 parts

Cushioning

Shock absorption

New

We tested the shock absorption of the Peregrine 15 and found a result of 125 SA, which makes complete sense given that it’s far from being a maximalist trail shoe. It lands right around the average, delivering just enough cushion without compromising ground feel.

Saucony Peregrine 15 Shock absorption heel
Heel
Forefoot
Test results
Peregrine 15 125 SA
Average 120 SA
Compared to 52 trail running shoes
Number of shoes
62 SA
Shock absorption
158 SA

Energy return

New

We measured 60.4% energy return in the heel and 65.8% in the forefoot, both above the lab average. That’s great news for runners craving a responsive ride, and when you combine bounce and price, we found that this is one of the top-performing trail shoes out there.

Heel
Forefoot
Test results
Peregrine 15 60.4%
Average 55.5%
Compared to 52 trail running shoes
Number of shoes
44.0%
Energy return
76.0%

Heel stack

It’s impressive how much shock absorption this shoe delivers with only 29.5 mm of stack height. In a market filled with new trail shoes pushing close to 40 mm, this feels like a perfect pick for lighter runners who don’t need an ultra-thick heel.

Saucony Peregrine 15 Heel stack
Test results
Peregrine 15 29.5 mm
Average 32.0 mm
Compared to 142 trail running shoes
Number of shoes
19.6 mm
Heel stack
42.4 mm

Forefoot stack

The forefoot offers plenty of stack to handle most runs, and as shown, it sits quite close to the heel. Using our calipers, we measured a total height of 25.8 mm.

Saucony Peregrine 15 Forefoot stack
Test results
Peregrine 15 25.8 mm
Average 24.5 mm
Compared to 142 trail running shoes
Number of shoes
13.4 mm
Forefoot stack
33.9 mm

Drop

One standout feature we tested in the Peregrine 15 is its low-drop geometry, something rarely seen in a big-brand trail shoe.

We discovered just 3.7 mm of difference between heel and forefoot, making it a strong pick for forefoot and midfoot strikers. Heel strikers might still enjoy the ride, but those with a heavy landing may not find it as smooth-flowing as in a higher-drop option.

Saucony Peregrine 15 Drop
Test results
Peregrine 15 3.7 mm
Average 7.5 mm
Compared to 141 trail running shoes
Number of shoes
-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.

We discovered last year that the Peregrine 14 felt overly firm. This time, Saucony took a different route, switching to a much softer PWRRUN foam with a 14.9 HA reading instead of the previous 26.0 HA, marking a bold 42% shift.

This upgrade makes the ride noticeably smoother and easier on the legs. Those who prefer a firm-and-stable feel can still grab the older version (likely at a nice discount) but for everyone else, the new midsole brings a more comfortable experience.

Saucony Peregrine 15 Midsole softness
Test results
Peregrine 15 14.9 HA
Average 22.4 HA
We use an average of four tests. The photo shows one of those tests.
Compared to 118 trail running shoes
Number of shoes
9.1 HA
Midsole softness (soft to firm)
39.0 HA

Rocker

The Peregrine 15 uses Saucony’s Speedroll rocker to deliver a smooth, forward-rolling transition. While not as aggressive as road models, it adds a natural feel that's especially helpful for heel strikers.

Saucony Peregrine 15 Rocker

Plate

New

We discovered that the Peregrine 15 features a plastic-based rock plate positioned only in the forefoot, visible through small cutouts in that zone. It’s a lightweight, plastic piece that adds protection where it matters most, and it's especially useful for runners tackling rocky trails.

Saucony Peregrine 15 Plate

Size and fit

Size

Owners of this shoe, how does it fit?

1 size small ½ size small True to size ½ size large 1 size large

Width / Fit

The fit of the Peregrine 15 feels similar to earlier versions when we tried them on. Still, we prefer to measure things precisely, so we pulled out the gel mold and took our first width reading: 95.5 mm.

That puts it right around the average compared to other trail running shoes. But let's keep digging!

Saucony Peregrine 15 Width / Fit
Test results
Peregrine 15 95.5 mm
Average 95.8 mm
Compared to 63 trail running shoes
Number of shoes
89.8 mm
Width / Fit
99.9 mm

Toebox width

Our second measurement was key to understanding the Peregrine 15’s fit. Saucony kept the same tapered shape seen in the 14, with just 70.9 mm of width in the toebox.

It’s a narrow design, definitely not ideal for wide-footed runners looking for extra room up front.

Saucony Peregrine 15 Toebox width
Test results
Peregrine 15 70.9 mm
Average 74.8 mm
Compared to 63 trail running shoes
Number of shoes
67.5 mm
Toebox width
85.3 mm

Toebox height

In contrast to the narrow toebox width, we found a generous toebox height of 28.2 mm.

This added vertical space gives your toes room to breathe, making it a great match for long trail efforts.

Saucony Peregrine 15 Toebox height
Test results
Peregrine 15 28.2 mm
Average 27.3 mm
Compared to 63 trail running shoes
Number of shoes
22.0 mm
Toebox height
31.8 mm

Traction / Grip

Lug depth

The Peregrine stays true to its roots with aggressive lugs. While it might’ve been tempting for Saucony to shrink them to 3 or 3.5 mm for added versatility, they stuck with 4.7 mm chevron-shaped lugs instead. 

We appreciate this decision. Plenty of new trail shoes go with small lugs, but the Peregrine strikes a better all-terrain balance.

Saucony Peregrine 15 Lug depth
Test results
Peregrine 15 4.7 mm
Average 3.5 mm
Compared to 141 trail running shoes
Number of shoes
1.5 mm
Lug depth
5.8 mm

Outsole design

New

The Saucony Peregrine 15 outsole features a full-length PWRTRAC rubber compound in two contrasting colors with clear segmentation between the forefoot and rearfoot.

It has 31 lugs positioned in alternating directions, using rear-facing patterns at the heel for braking and forward-facing ones at the forefoot to support push-off and climbing.

Saucony Peregrine 15 Outsole design

Flexibility / Stiffness

New

Good news here, as the Peregrine 15 shows impressive flexibility given its stack height and full-length outsole. We measured just 11.1N in our lab test, which comes in well below the average and confirms its easy-bending structure.

Saucony Peregrine 15 Flexibility / Stiffness
Test results
Peregrine 15 11.1N
Average 14.2N
Compared to 52 trail running shoes
Number of shoes
3.2N
Flexibility <> Stiffness
23.6N

Weight

The Peregrine 15 ticks another box, as it keeps exactly the same weight as its predecessor: 9.4 oz or 266g. We tested both side by side and found no change at all on the scale.

That’s a strong result. In fact, it’s one of the rare trail models that manages a comfort-driven feel without adding a lot of weight.

Saucony Peregrine 15 Weight
Test results
Peregrine 15 9.4 oz (266g)
Average 10.2 oz (290g)
Compared to 142 trail running shoes
Number of shoes
7.5 oz (213g)
Weight
12.7 oz (359g)

Breathability

At first glance, the upper of the Peregrine 15 looks rugged and trail-ready, built more for harsh conditions than airflow. Still, we connected it to our smoke machine using a 3D-printed tool that directs smoke into the toebox to check how well it expels warm air.

After running the test, we recorded a 3/5 score. That’s a solid result for a trail shoe and suggests good year-round comfort. For summer runs, we recommend pairing it with thin, moisture-wicking socks to stay cool and dry.

Next, we examined the upper over a bright light to better assess its design. It’s clear that Saucony went for a structured-and-supportive build in the heel and midfoot, with only the front section focused on ventilation.

Saucony Peregrine 15 microscope

Under the microscope, we discovered that the engineered mesh is nothing out of the ordinary.

Saucony Peregrine 15 mesh

We’ve seen plenty of similar designs in the lab, which isn’t a downside. If it works well, there's no need for change.

We appreciated the upper’s comfort-protection mix, with a balance that leans slightly toward durability. It's a no-nonsense setup that fully fits the identity of this shoe.

Test results
Peregrine 15 3
Average 3.2
Compared to 118 trail running shoes
Number of shoes
1
Breathability
5

Stability

Lateral stability test

Considering the softer foam in the Peregrine 15, we expected a drop in stability compared to v14. Still, we discovered that it holds up well overall.

We found that support takes a minor hit, but nothing that feels like a dealbreaker. It's just a minor trade-off that most runners will likely find worthwhile.

Torsional rigidity

Just like in our longitudinal stiffness test, we were glad to see that Saucony didn’t go overboard with stiffness. The Peregrine 15 remains easy to bend and twist with a 2/5 score, which adds to its comfort and makes it hike-friendly too.

Test results
Peregrine 15 2
Average 3.6
Compared to 136 trail running shoes
Number of shoes
1
Torsional rigidity
5

Heel counter stiffness

The heel counter feels similar to what we usually find in road daily trainers, scoring 3/5 on our scale. It’s clearly structured, yet nicely padded and well-protected, offering support without causing any discomfort.

Test results
Peregrine 15 3
Average 3.1
Compared to 134 trail running shoes
Number of shoes
1
Heel counter stiffness
5

Midsole width - forefoot

Aside from the softer PWRRUN foam, the biggest change in the Peregrine 15 compared to its predecessor comes from its updated dimensions. The forefoot now measures 117.0 mm, noticeably wider than the 112.3 mm we recorded last year.

That added width helps explain why, even with the softer foam, the shoe didn’t feel as unstable as we expected.

Saucony Peregrine 15 Midsole width - forefoot
Test results
Peregrine 15 117.0 mm
Average 112.4 mm
Compared to 142 trail running shoes
Number of shoes
102.1 mm
Midsole width - forefoot
124.3 mm

Midsole width - heel

The same applies to the heel, which increased from 85.9 mm to 90.5 mm in this fifteenth version. We see this as a positive update, especially beneficial for heel strikers looking for a broader landing platform.

Saucony Peregrine 15 Midsole width - heel
Test results
Peregrine 15 90.5 mm
Average 89.5 mm
Compared to 142 trail running shoes
Number of shoes
72.0 mm
Midsole width - heel
106.0 mm

Durability

Toebox durability

Durability is a key factor in any trail running shoe, so we were eager to test the Peregrine 15. After powering up the Dremel and applying it to the upper, we found it held up impressively well, earning a solid 4/5 score.

Test results
Peregrine 15 4
Average 3.1
Compared to 99 trail running shoes
Number of shoes
1
Toebox durability
5

Heel padding durability

The heel padding also earned a good score in our test, even if a 3/5 wasn’t particularly outstanding. Still, the key takeaway is that it showed no weakness and it's definitely not a drawback.

Test results
Peregrine 15 3
Average 2.9
Compared to 98 trail running shoes
Number of shoes
1
Heel padding durability
5

Outsole durability

The PWRTRAC outsole also faced the Dremel test, showing 0.9 mm of wear and being right in line with the lab average. It’s not a concern, especially given the shoe’s deep lugs.

Test results
Peregrine 15 0.9 mm
Average 0.9 mm
Compared to 92 trail running shoes
Number of shoes
0.0 mm
Outsole wear
2.0 mm

Outsole thickness

The outsole measures just 1.2 mm in thickness, likely to reduce weight. Since the Peregrine 15 includes a rock plate, Saucony can rely on it for underfoot protection and use less rubber without compromising safety.

Saucony Peregrine 15 Outsole thickness
Test results
Peregrine 15 1.2 mm
Average 2.3 mm
Compared to 142 trail running shoes
Number of shoes
0.9 mm
Outsole thickness
5.5 mm

Misc

Insole thickness

One of the hidden details in the Peregrine 15 is the insole, because it’s not the standard type found in most shoes. This one is thicker at 6.9 mm and made from TPU-based PWRRUN+ instead of regular EVA. Funny enough, the insole foam actually is more premium than the midsole itself!

Saucony Peregrine 15 Insole thickness
Test results
Peregrine 15 6.9 mm
Average 4.7 mm
Compared to 140 trail running shoes
Number of shoes
2.1 mm
Insole thickness
7.9 mm

Midsole softness in cold (%)

We placed the Peregrine 15 in the freezer for 20 minutes to see how it handles cold conditions. It became only 22% firmer, which is a pretty decent result and suggests solid temperature resistance.

Test results
Peregrine 15 22%
Average 26%
Compared to 118 trail running shoes
Number of shoes
5%
Midsole softness in cold
68%

Removable insole

You can remove the FormFit insole if you prefer a firmer feel or want to use your favorite insert. However, that means giving up one of the shoe’s standout features, since the stock insole is made from PWRRUN+ as mentioned earlier.

Saucony Peregrine 15 Removable insole
Test results
Peregrine 15 Yes

Reflective elements

Saucony Peregrine 15 Reflective elements

Tongue padding

The tongue of the Peregrine 15 comes with 6.0 mm of padding. In our experience, that's enough even for those tackling day-long hikes or ultra runs.

Saucony Peregrine 15 lacing

We also found that the Peregrine 15 features a simplified lacing system compared to version 14. In this update, Saucony uses only one blue fabric loop on each side to improve lockdown. In the previous version, there were two of these loops per side, which added more complexity to the design.

Saucony Peregrine 15 Tongue padding
Test results
Peregrine 15 6.0 mm
Average 6.4 mm
Compared to 142 trail running shoes
Number of shoes
1.3 mm
Tongue padding
12.3 mm

Tongue: gusset type

The tongue is stitched to the sides, which is always a welcome detail in a trail shoe.

Saucony Peregrine 15 Tongue: gusset type
Test results
Peregrine 15 Both sides (semi)

Price

One of the standout features of the Peregrine 15 is its reasonable price point, right in line with the best-selling road daily trainers. Trail models often come with a premium, so we were glad to see that this version didn’t get a price bump like others and remains a fair-value option.

Test results
Peregrine 15 $140
Average $148
Compared to 142 trail running shoes
Number of shoes
$60
Price
$260

Heel tab

There’s a simple-but-functional finger-loop heel tab that gives the shoe a more trail-ready look. It’s reinforced with solid stitching, and we don’t expect it to come loose with regular use.

Saucony Peregrine 15 Heel tab
Test results
Peregrine 15 Finger loop