Pegasus 40 Review

Nike Pegasus 40 Review – Is This The Best Daily Trainer On The Market

Nike has just dropped the new iteration of their Pegasus line. In this review, we will be taking a look at the changes they have made to this edition of the shoe, who should buy it, and what type of running this shoe is actually good for.

I grabbed a pair of the Pegasus 40s a couple of weeks after launch from When writing this review, I have put over 50 miles on the shoes. I will continue to update the article with more information on the durability of the shoe, as I clock up more miles.

Let’s jump in and take a look at Nike 40th version of this iconic running shoe.

Nike Pegasus 40 Side View
Pegasus 40 – Colorway: White/Light Orewood Brown/Phantom/Obsidian

Pegasus 40 Video Review

Nike Pegasus 40 Review

Pegasus 40 Tech Specs

Shoe TypeNeutral
TerrainRoad, Light Trail
Best ForDaily Trainer / Easy Runs / Long Runs
SizesMens – UK5.5 – UK14 / Women – UK3 – UK9.5
WeightMen 288g
Forefoot Height23mm
Heel Height33mm
Nike Pegasus 40 Tech Specs

Who Should Buy The Pegasus 40s?

The Pegasus Line of shoes is great for most runners and the Pegasus 40 is no different. Nike has once again made a great shoe for the everyday runner. You can take this shoe out on a long run and feel comfortable for a long period of time, throw it on for an easy run, or even give them a run for its money in a speed session.

Nike Pegasus 40 Botton and Front View

If you need a new pair of shoes to throw into your everyday rotation these are a great choice. However, with how few changes Nike has made to the shoe, it may be a better choice to pick up the Peg 39s on sale and wait for a bigger overhaul on the Pegasus 41s.

Who Shouldn’t Buy This Shoe

There are a few types of people for who this shoe won’t work well:

  • This shoe is designed with neutral support. If you are someone who is flat-footed and needs more support in your running shoes then these won’t be the best fit for you. You should look at a more supportive shoe such as the Nike React Infinity 3 if you overpronate.
  • If you are looking for a race day shoe to give you maximum speed, there are better options in the Nike Range. For Race Day Shoes check out the Nike Vaporfly 3 or the Alphafly 2. These are Nike’s latest “Super Shoes”.

Difference Between The Pegasus 40 and 39

You would think that for the 40th year of the Pegasus, Nike would go all out and give us a completely revamped version of the shoe. However, that’s not the case. The Peg 40 and 39 have a lot in common. As it is a gap year, we can likely expect to see some more changes in the next version.

Similarities – Nothing has really changed on this shoe from the midsole down. The 39 and 40 runs on the same base. The foam, drop, and grip design on the sole of the shoe is the exact same.

Differences – The main changes in the Peg 40s come in the upper. The shoe got a new, more premium looking upper as well as a new lacing system giving the shoe a more comfortable fit.

How Does The Pegasus 40 Feel

When I first stepped into the Pegasus 40, they instantly felt comfortable. They have plenty of wiggle room in the toe box and adequate cushion on the heel. Once you lace them up the Arch Lock secures the shoe in place.

The shoe isn’t the most cushioned but feels springy and “ready to go” on all occasions.

The only place I felt they got a little uncomfortable was running inside on a running machine. They got very sweaty in this environment.

Are The Pegasus 40 Narrow?

In the past, I had issues with the Peg 35s and 37s being too narrow. However, after putting in multiple long runs, speed sessions, and easy miles on the 40s, I haven’t had a problem. They fit true to size.

Nike generally runs a little narrow in all their shoes, so if you feel your foot is a little wider, go for the wide version of the Pegasus. If they don’t fit correctly, you can always return them.

Pegasus 40 Structure


The upper of this shoe is made from a single-layer piece of mesh. During a long run, the shoe felt fairly breathable but the weather hasn’t been hot in the UK yet. I did find during a running machine session in the shoes, my feet were getting very sweaty. However, that can be expected in any indoor session.

The downside of changing to this material vs the previous version of the shoe is an increase in weight. The 40 comes in at 288g while the 39 weighs only 249g.

By no means is the 40 a “Heavy Shoe” but the new upper has given the shoe an increase in weight.

Lacing System

The Peg 40 has got a new lacing system called “Arch Lock” which I’m personally enjoying. It is made with a U-shaped piece of material that runs underneath the sole of your foot.

When you are tightening the laces on the shoe, you are pulling together that piece of material, locking your arch in place.

This system is comfortable and makes you feel stable in the shoe.


The Mid-Sole hasn’t changed at all in the Pegasus 40. It is made from React Foam and has two Zoom Air Units. One in the heel and one in the forefoot.

The shoe has a 23mm forefoot height and a 33mm heel height giving it a 10mm drop. This makes it a fairly low-profile shoe compared to some of the more cushioned shoes on the market.

While there isn’t much foam there, the Zoom air unit still does give you that springy feel as you run. Not as much as you feel it in something like Vaporflys, but it’s still there.


Pegasus 40 Outsole

The outsole is the exact same as the Peg 39. When running in wet conditions, I still felt confident in this shoe. Even on slippy footpaths or cobblestones, this shoe holds up providing you with a good grip.

Long Runs In Pegasus 40s

The first run I took on in this shoe was a 10-mile long run on a reasonably warm Sunday. Throughout the whole run, these shoes felt great. While they aren’t the most cushioned ride compared to some shoes, they hold up throughout the miles. It wasn’t extremely warm on the day but I had no issues with breathability in this fairly long run.

In previous versions of the Pegs, particularly the 35s and 37s, I had issues with the shoe being too tight on my foot. This was absolutely not the case with the 40. My whole run felt great and I’m excited to try them out in a few more sessions.

I will give them another run-out and push for a longer 13-17 mile run. This is usually where I might start to experience some sort of foot pain in other shoes on a long run.

Speed Sessions In The Pegasus 40

I have done one speed session in the 40s. It was 10x400m @ 5:35 Pace. The shoe performed just fine during the session however it’s not specifically designed with speed in mind.

You won’t get that responsiveness and top-line speed you get from a Vaporfly or Alphafly. You will have to work harder in the Pegasus.

However, it’s a fairly light shoe that will hold in a speed session if you need it to. It’s a great shoe to keep in the car if you don’t know what type of session you’re going to be doing.

Should You Buy The Pegasus 40s?

If you are in the market for a new pair of daily trainers, the Pegasus 40s are a great choice however they aren’t cheap. While there are no major flaws with the 40s, there are also no major upgrades.

Here at LiftRunRest, we would recommend picking up a pair of Pegasus 39s while they’re on offer. You will get a very similar shoe at about 40% of the price.

How Does The Shoe Hold Up Across The Miles

The Pegasus line of shoes is known to hold up over a lot of mileage. I will update this section at 100, 200, and 300+ miles so you can get an idea of how durable these shoes really are.

100 Mile Update

Wrapping Up

That’s the Pegasus 40s in a nutshell. Hopefully, this review can help you decide whether or not this shoe is for you.

If you do decide to pick a pair up, you won’t be disappointed but you also won’t be blown away. It’s simply a great daily trainer you can keep in the car for any run.

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