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Saucony Peregrine ISO - Women's Review

A superior performer that offers exceptional value on all types of terrain.
Best Buy Award
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Price:  $120 List | $120.00 at REI
Pros:  Comfortable, versatile fit, great responsiveness, fantastic value, durable
Cons:  Doesn't shed mud well, some midsole compaction over time
Manufacturer:   Saucony
By Amber King ⋅ Senior Review Editor  ⋅  Aug 2, 2019
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80
OVERALL
SCORE


RANKED
#2 of 18
  • Foot protection - 20% 8
  • Sensitivity - 20% 8
  • Traction - 15% 9
  • Stability - 15% 7
  • Comfort and Fit - 15% 9
  • Weight - 15% 7

Our Verdict

The Saucony Peregrine ISO offers a world of comfort, reliable traction, and a well-balanced level of protection to sensitivity. We tested it for over 60+ miles over dirt roads, mountain trails, desert canyons, and more. The shoe itself is stable and protective with just the right amount of responsive cushioning that will crush most surfaces. It offers a remarkable value and will keep your feet comfortable for many miles. Whether you're going for an after-work jaunt or running your next ultra-distance race, we trust and love it for any distance.

The Peregrine ISO is the successor to the Peregrine 8. Here is an overview of the biggest differences:
  • Better fit with the ISOFIT frame
  • A similar level of protection
  • Feels like less cushioning with increased sensitivity
  • More breathable upper
  • Better overall shoe


Compare to Similar Products

 
Awards Best Buy Award Editors' Choice Award Top Pick Award   
Price $120.00 at REI$150.00 at Amazon$129.95 at Backcountry
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$119.95 at Backcountry
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$64.99 at Backcountry
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Pros Comfortable, versatile fit, great responsiveness, fantastic value, durableSuperb traction, amazing durability, wide-toe box, zero-drop design, great sensitivity, highly protective outsole and upperExcellent traction, great balance of foot protection and sensitivity, specific fit, durable outsoleGreat price, flexible, comfortable, responsive, one-pull lacing systemAggressive and versatile outsole, breathable upper, protective, light cushioning, zero-drop, wide forefoot
Cons Doesn't shed mud well, some midsole compaction over timeLaces come undone easily, lacks a women’s specific fit, upper takes time to break-inHigher heel is less stable, lugs wear down on pavementNo aggressive outsole, lug durability is questionableDurability issues, expensive
Bottom Line A superior performer that offers exceptional value on all types of terrain.This Editors' Choice winner crushes every metric with its innovative and super durable design.An aggressive trail shoe that is built for the steepest and most technical trails out there.A well fitted and comfortable shoe that is best for non-technical surfaces.A lightweight zero drop shoe with ample toe splay that'll take you anywhere you wish.
Rating Categories Peregrine ISO Inov-8 TerraUltra G260 Speedcross 5 Sense Ride 2 Altra King MT 1.5 - Women's
Foot Protection (20%)
10
0
8
10
0
8
10
0
9
10
0
7
10
0
6
Sensitivity (20%)
10
0
8
10
0
10
10
0
8
10
0
8
10
0
9
Traction (15%)
10
0
9
10
0
9
10
0
10
10
0
6
10
0
8
Stability (15%)
10
0
7
10
0
9
10
0
7
10
0
8
10
0
9
Comfort And Fit (15%)
10
0
9
10
0
7
10
0
8
10
0
9
10
0
7
Weight (15%)
10
0
7
10
0
8
10
0
5
10
0
9
10
0
7
Specs Peregrine ISO Inov-8 TerraUltra... Speedcross 5 Sense Ride 2 Altra King MT 1.5...
Measured Weight 9.8 oz 8.75 oz 10.7 oz 8.6 oz 9.6 oz
Ideal Terrain All terrain All terrain Soft surfaces, technical terrain Non-technical trails, cross-over terrain All terrain
Width Options Regular and Wide Regular Regular and Wide Regular Regular
Heel-to-Toe Drop 4 mm 0 mm 10 mm 8 mm 0 mm
Stack Height from toe to heel (mm) 18.5/22.5 9/9 10/20 27/19 19/19
Upper IsoFit Kevlar Mesh Nylon mesh, sythetic overlays 3D Mesh Ripstop nylon/mesh
Midsole PWRFOAM EXTERFLOW Injected EVA Vibe Altra EGO
Outsole PWRTRAC Graphene Grip Contragrip ContraGrip Vibram MegaGrip
Rock Plate? None Yes Yes None, profeel film Yes
Sizes Available 5 - 12 4 - 15 5 - 12 7 - 10 6 - 11

Our Analysis and Test Results

The Saucony Peregrine ISO wins our Best Buy Award for its bomber traction and an excellent balance of protection to sensitivity. The fit is versatile, with the option to choose from a wide and regular option. Seriously, it's hard to find any caveats to this impeccable trail runner, and the price is right too.

Performance Comparison


The Saucony Peregrine ISO offers versatile performance for a great price. This wins our Best Buy award winner as we found it fit most feet and can truly "go anywhere" as Saucony does claim.
The Saucony Peregrine ISO offers versatile performance for a great price. This wins our Best Buy award winner as we found it fit most feet and can truly "go anywhere" as Saucony does claim.

Foot Protection


This shoe offers impressive protection in the form of enhanced cushioning and an upper that keeps feet protected from the outside environment. We only wish for a more burly toe box.


Let's start with the protective foam that shields our feet from underfoot hazards. The midsole has 18.5 mm of cushioning in the forefoot and 22.5 mm of cushioning in the heel. The cushioning itself is called PWRFOAM and feels squishy, but also responsive. On the top is a thin layer of EVERUN, which offers more response and protection, protecting your feet from sharpness underfoot.

This shoe offers a good level of cushioning with its 4 mm drop providing a responsive ride on the trail.
This shoe offers a good level of cushioning with its 4 mm drop providing a responsive ride on the trail.

In this iteration, there is no rockplate, and the amount of foam is a little less than the previous Peregrine 8. Even with less foam, we didn't notice rocks poking through the bottom of the outsole. We took it on many runs, including a few super steep hikes in the alpine, with sharp rocks and roots abound. Our testers all said this shoe provides adequate protection for all these surfaces, making it great for technical terrain.

When running in the sandy terrain of the desert, the upper mesh and collar completely wrap the foot, keeping out pesky debris. The only ask we'd like to request is a less flexible toe cap with a little more protection. On a downhill descent, we accidentally kicked a few rocks while in full sprint and could feel the impact.

The toe cap isn't super hard but provides sufficient protection.
The toe cap isn't super hard but provides sufficient protection.

While this shoe isn't waterproof by any means, it does dry quickly, as the upper mesh is composed of a less absorbent plastic material. As a result, we do recommend the ISO if you're going to be splashing through water crossings or patches of snow. We really appreciate the fantastic protection of this shoe, earning it a high score in this category.

The mesh is breathable and surprisingly quick to dry -- a new change that we love in this update.
The mesh is breathable and surprisingly quick to dry -- a new change that we love in this update.

Sensitivity


The new Peregrine ISO offers a fantastic balance of sensitivity, particularly for the protection that it offers.


Its predecessor, the Peregrine 8, offered more foam (24.5 mm in the heel, 20.4 mm in the forefoot) than the current version, which has 22.5 mm in the heel, and 18.5 mm in the forefoot. While the cushioning isn't as ample, it still offers a comfortable ride. You can feel most of the trail underfoot, allowing you to position your body accordingly, especially on technical terrain.

The forefoot offers a good level of sensitivity on the trail.
The forefoot offers a good level of sensitivity on the trail.

While this shoe isn't as sensitive as thinner contenders, like the Inov-8 TerraUltra G260, our Editors' Choice winner, it offers the ideal amount of sensitivity and protection for trail runs over technical terrain, even for the ultra-distance runner.

Traction


Wow! The outsole on this shoe is still as bomber as ever! With over 78 aggressive lugs that offer multi-directional traction, this shoe does well on pretty much every surface. Even after 60+ miles of testing, we didn't detect any major signs of wear and tear and found they continued to offer amazing traction.


Patterned in chevrons throughout the outsole, these lugs are long and grabby. While hiking up steep paths in the Rocky Mountains of the San Juans, this shoe was our go-to because it didn't slip when traveling terrain littered with loose rocks over hard-packed, dry dirt.

A look at the aggressive outsole. It does well on all surfaces  but unfortunately  grit sometimes gets stuck in the little spaces between the lugs.
A look at the aggressive outsole. It does well on all surfaces, but unfortunately, grit sometimes gets stuck in the little spaces between the lugs.

In muddy conditions, it bites into the dirt…until the lugs get clogged. Unfortunately, unlike the Salomon Speedcross 5, which easily sheds mud, this shoe doesn't do the best of shedding clay-based mud constituents. We appreciate its performance when the trails are a bit wet or when running in grassy conditions.


Over hardpacked dirt and roads, its outsole provides a nice, smooth take-off and landing. The lugs are sticky and hard and don't collapse under the impact of hitting a harder surface. Over slippery rocks, it'll maintain traction under most circumstances; however, if the rocks are full of slime or algae, don't be surprised if you slip off, as there is virtually no shoe out there that can perform well in these conditions.

We love the outsole of the tail-biting Peregrine ISO. It does well in various terrains, including treacherous and unstable. It sticks well to rocks and offers some potential for low-key scrambling, particularly if you love hoofing it to summits.

Stability


We think this shoe offers an average to a high level of stability that provides great functionality on uneven, or technical terrain.


The regular fit (which is what we tested) provides a reasonably spaced toe box, which allows for some level of toe-spread. The shoe is somewhat flexible, molding around on-trail hazards. The stack of this shoe isn't very high, which provides a more 'grounded' feeling when running on the trail. With higher sensitivity, you can feel most of the trail hazards and move around them easily.

The collar of the shoe in addition to its great fit offers good stability on the trail.
The collar of the shoe in addition to its great fit offers good stability on the trail.

This shoe doesn't have any 'stabilizing' elements like shanks, but its stability comes in the form of a wider toe box, lower stack height, and effective flexibility. The outsole is wider around the fringe as well, which grabs the trail for great lateral support. While your personal safety comes in the form of your own balance and running style, this shoe helps you stay upright. Overall, stability is good, and it offers adequate support for short or long runs on most terrain.

Comfort & Fit


This ISO is comfortable and provides a versatile fit for all types of feet. It is a neutral trail shoe that offers a little bit of arch support. It also has a 4 mm drop, so it fits into our 'low-profile' category and is suitable for all types of foot strikers.


The comfort elements? One of the stand-out features is the super lavish and cushioned collar that encapsulates the foot. When we first saw this shoe out of the box, we were unsure if this collar was going to be comfortable; once we slipped our foot inside, we noticed how plush it felt. The material is super soft with the insole offering a little 'grab' to prevent slippage. The upper is also soft, without any hard elements surrounding the toe box, which makes it flexible and moldable, whether your feet are wide or narrow.

A look at the width of the shoe that offers a good fit for those with a narrow to wide fit. The lacing system wraps the foot providing a precise and adequate fit for many different foot shapes.
A look at the width of the shoe that offers a good fit for those with a narrow to wide fit. The lacing system wraps the foot providing a precise and adequate fit for many different foot shapes.

The best part of this shoe is the new ISOFIT dynamic upper, which is revolutionary. The flat laces pull through the system to completely wrap your foot. The one-pull tightening design is a step-up from the previous version, and on the run, it really helps to keep your foot in place. The long tongue is super soft against the top of the foot and doesn't put any added pressure in one particular place. The tongue is thin throughout its body but thickens up at the top to add protection from trail debris.

A look at the "wing-tipped" lacing system that offers great breathability and a quick to dry construction on the go.
A look at the "wing-tipped" lacing system that offers great breathability and a quick to dry construction on the go.

The ISO was tested out by many friends, with both narrow and wide feet, with the consensus being that they are a comfortable trail running option. One of our main testers has a large bone spur on the outside of her foot, and because of the flexible upper said these shoes were perfect.

What's even more unique is the Peregrine ISO is offered in both a regular and wide size. While we didn't test the wide size, we imagine there is more space in the toe box if you want a lot of room for foot wiggle. Overall? This is a super comfortable trail shoe with a versatile fit.

Weight


The ISO is a lightweight shoe weighing in at about 9.8 oz for a women's size nine. While it's not as low profile or thin as other contenders, its weight is average for the level of protection and cushioning it offers.


We like to weigh shoes ourselves to see how the weight truly compares.
We like to weigh shoes ourselves to see how the weight truly compares.

Best Applications


Can we say "Run Anywhere"? True to its name, it's designed to do just that. The superior construction allows you to go from hard-packed desert trails to roads, to treacherous high alpine terrain. We've seen this shoe tackle everything from short trail runs to ultra-distances, and we love and trust it for all of the above.

Jo goes with the flow in the Saucony Peregrine ISO that delivers a stable and comfortable ride for any kind of distance.
Jo goes with the flow in the Saucony Peregrine ISO that delivers a stable and comfortable ride for any kind of distance.

Value


Trail running shoes have a wide range of pricing options, but most hang out around the $130 price tag, and go up from there. Retailing for $120, this shoe is about $10 less, making it one of the most affordable options out there. While it's not the cheapest, it certainly offers the best performance for the price.

What's more is that after 60 miles of wear, we didn't see any signs of wear and tear; no broken or worn down lugs, no tears in the upper, and only minor compaction over time. As a result, the ISO's durability is bomber. When perusing the internet for consumer feedback, we couldn't find any reviews stating that durability is of concern. Is there value in this shoe? Heck ya, the best in this review.

Conclusion


This Best Buy award winner is one of our favorite trail running shoes. The Saucony Peregrine ISO blew us away with its stand-out comfort and versatile fit that can tackle any type of trail terrain and will fit most types of feet. We're impressed with its responsive, protective ride, complete with its light weight. If you're seeking a great deal and a trustworthy trail runner, this is our best recommendation.


Amber King