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Nike React Miler vs. Nike Air Zoom Pegasus – Which Is Right for You?


There’s a reason Nike is one of the most popular shoe brands out there! They make a huge range of shoes, both casual and athletic, that look and feel good.

As well as a stylish design, they usually have excellent cushioning, support when necessary, and a high level of comfort. Today we’re comparing two popular choices—the Nike React Miler vs. the Air Zoom Pegasus.

Both are road running shoes in a similar price range. If you’re looking for a new road running shoe and love Nike, consider these two!

Here’s all you need to know to choose which one is right for you.

Main Differences

The two shoes are road running shoes with good cushioning, a comfortable and durable upper, and good arch support.

However, some noticeable differences between the two shoes could sway you to one or the other.

The React Miler is the heavier of the two shoes, although the extent of the weight depends on your size. If weight is important to you, you may feel more comfortable with the slightly lighter Pegasus.

Those who need extra space in the forefoot may prefer the React Miler. It has a more spacious toe box than the Pegasus, although the Pegasus comes in wide sizes, which the React Miler doesn’t.

In terms of cushioning, the React Miler is firmer, while the Pegasus is a little softer. Both have some bounce to them, but the Pegasus does feature Zoom Air units for extra shock absorption and responsiveness.

The React Miler also has an external heel clip and features a high level of reflectivity, making it excellent for night runs.


Nike React Miler 3

The Nike React Miler 3 features a new, improved mesh upper with an asymmetrical eyelet system and flat laces. Coupled with the padded tongue and anatomical ankle padding, this helps you to get a good lockdown on the foot without creating hotspots.

The double-knit technical mesh is highly durable, featuring synthetic inserts and reinforced seams. It may run slightly warm in hot weather.

It’s a little more stretchy than the previous version and has a spacious toe box, making it suitable for runners with wide feet.

There’s a sturdy heel counter around the back of the heel which creates a secure heel pocket, keeping your foot safely in place as you run.

Nike Air Zoom Pegasus 39

The upper of the Pegasus uses engineered sandwich mesh. To help you to get the perfect fit, this shoe features Flywire support, which allows for a slight stretch in the upper without compromising a good lockdown.

A long, padded tongue helps prevent lace bites when you cinch down. The redesign of the upper also does away with the heel slip that was reported on previous models.

The heel counter flares outwards to prevent chafing on the Achilles and won’t be uncomfortable.

The forefoot is slightly more narrow, but the shoe is available in narrow, wide, and extra wide if you need more—or less—space.


Nike React Miler 3

You’ll find React foam in this shoe, as its name suggests. It has a lot of cushion underfoot, with about 21 mm of foam on the forefoot and 31 mm on the heel.

Compared to the React Miler 2, this shoe is a little stiffer. However, it does offer some good bounce and softens up over time.

There’s strong arch support that can suit those with high arches. It may take some time to break in for those with a neutral foot.

There’s no added support in this shoe, so it may be suitable for runners with very mild overpronation, but it’s not recommended for moderate to severe overpronators.

It does have a unique rocker design that supports your feet and encourages a smoother heel-to-toe transition in all three phases of your stride.

Nike Air Zoom Pegasus 39

The Pegasus 39 also features full-length React foam in the midsole, with 22 mm in the forefoot and 30 mm in the heel. However, the Pegasus also features two Zoom Air units in the midsole.

There’s one Zoom Air unit in the forefoot, which helps to increase the responsiveness of your toe-off. In the heel, there’s also a Zoom Air unit to cushion your landing and protect your joints.

The midsole feels medium-firm and better suited to shorter tempo runs, although you can use it for longer runs if you’re comfortable with the cushioning. Despite its firmness, the shoe is still flexible.

Although it’s a neutral shoe, it also offers good arch support for medium to high arches. The sole has a slight rocker geometry, which works well with the Zoom Air units to help you transition and toe-off quickly and smoothly.


Nike React Miler 3

The React Miler 3 also features an updated outsole, with the forefoot entirely covered in grippy rubber and some exposed foam in the midfoot and middle of the heel.

It’s been designed using runner-informed data so that it’s effective for traction and still highly durable while keeping the weight of the shoe down.

The abrasion-resistant rubber not only lasts a long time, even running on rough surfaces, but it’s sticky enough to protect you effectively on slick or loose surfaces.

Nike Air Zoom Pegasus 39

The Pegasus 39 uses a combination of highly durable carbon rubber on the lateral side of the outsole and softer, tackier blown rubber on the medial side. The sole is more covered than the React Miler 3, with only a small strip of exposed foam in the midfoot.

It also features two horizontal flex grooves in the forefoot, which makes it flexible enough to be comfortable as you run.

It’s the perfect mix between high durability and excellent traction that will keep you safe on a number of different surfaces for many miles to come.

Other Features


Nike React Miler 3

The React Miler 3 features both a firmer midsole and a stiffer outsole. Wearers have reported that it’s stiffer than the previous version of the shoe.

Nike Air Zoom Pegasus 39

The Pegasus 39 is the more flexible of the two shoes. This is partly thanks to the softer foam in the midsole and the flex grooves in the outsole.


Nike React Miler 3

The React Miler has a stretchy upper that can accommodate wider feet. It also has a wide toe box, so the fit is good for those who need some space on the forefoot.

Nike Air Zoom Pegasus 39

The Pegasus line has traditionally run on the narrow side, despite being true to size. Although it has a narrower forefoot, the shoe comes in a range of widths to accommodate all feet.


The Nike React Miler 3 has a heel-to-toe drop of 10 mm, while the Pegasus has a slightly lower drop of 8 mm.


Nike React Miler 3

Depending on the size of the shoe, the Nike React Miler can weigh between 9 ounces and 11 ounces. Wearers have stated that it feels a little heavy on the feet.

Nike Air Zoom Pegasus 39

The Pegasus 39 can weigh between 8 and 10 ounces, depending on your size. It’s slightly lighter than the React Miler.


The two shoes are quite similar in price. At the time of writing, the Nike React Miler 3 retailed for $120 on the Nike website, while the Nike Air Zoom Pegasus 39 sells for $130.


The Nike React Miler vs. Pegasus is quite a tough debate. Both shoes feature classic Nike materials and technologies and are stylish-looking. However, their differences may be what changes your mind in favor of one or the other.

The Nike React Miler 3 is suitable for daily use on the road, both for long and short runs. It’s a great option for those who like the traditional snug Nike fit but need a touch more room in the forefoot.

It’s on the firm side, so those looking for soft cushioning may want to look elsewhere. The shoe is also the heavier of the two, so runners who want a light shoe might feel that this one isn’t suitable for them.

The Nike Pegasus 39 is a great daily trainer for tempo runs, although you can take long runs in it if you’re comfortable with the level of cushion.

It fits true to size and features Nike’s typical narrow fit, but it also comes in multiple widths so everyone can find their fit. The toe box is a little narrow in comparison to the rest of the shoe, though, so those who need space may not feel comfortable in these.

It is better for those looking for more balanced cushioning and improved shock absorption.

If you overpronate, you may want to consider the Nike Air Zoom Structure instead. Neither of these shoes perform very well in the heat, either—if you’re looking for an extremely breathable shoe to use in hot weather, these won’t be it!

However, if you want reliable, comfortable, all-around road running shoes, both the React Miler 3 and the Pegasus are excellent choices.

Ben Drew

Ben Drew

Ben is an avid road and trail runner, and has completed multiple marathons and ultras. A former running store owner, he now shares his knowledge and experience writing these articles.

The Wired Runner