With the Gara Carbon, Diadora nailed their entry into the carbon plated racing shoe market. The second iteration didn’t change very much outside of a new paint job. The third version does see some changes. A remixed foam compound and a newly designed upper change the shoe in both fit and feel.
Have Diadora kept the magic or have they tinkered their way off the top?
We put the Gara Carbon 3 to the test to find out. (Spoiler alert: one of the team ran a 14:15 5km in them.)
Upper and Fit of the Diadora Gara Carbon 3
What works for me
As soon as I got it out of the box, the Gara Carbon looked narrow, the Matryx upper returns but there is less volume in it. More of this later. With the carbon plate from Ducatti, Diadora have taken the thinness of the motorbike and applied it to footwear. The result is a very snug and locked down fit. There is certainly no bagginess in the forefoot for sliding around.
One definite improvement in the upper is the reinforcement of the eyelet chain. In my original pair of Gara carbon, the serrated laces sawed through one of the lower eyelets which made me very sad. They were still usable but the fit was never quite right. However, Diadora have remedied this well. The entire lace chain has an overlay to make sure that the upper remains intact and the fit is secure.
The laces themselves remain the serrated affairs that adorn the majority of race shoes on the market. They do their job well and their is no issues with getting and keeping them tied. One major difference about the Gara Carbon 3 to its competitors is the level of padding around the neck of the shoe. The achilles area has a generous foam pad atop a stout heel counter. All of this works together to ensure that the foot remains locked in place.
Midfoot breathability is good on the Gara Carbon 3. Up front and in the back, Diadora have layered the Matryx mesh more to ensure durability. The tongue is thin and ungusseted but it behaves well when putting the shoe on and lays flat during the run.
What doesn’t work for me
If you have seen our YouTube review, you will know that the fit has been a bit of an issue for me. The Gara Carbon 3 is narrow, really quite narrow. On my first run in them, I had to stop and rejig the laces as I was experiencing some numbness in the foot after about 12km. While opening up the laces has helped mitigate this, I am not sure that I could run a full marathon in these due to swelling of the foot over the distance.
For many, the upper will give a great fit and wonderful durability. If you have a wide foot, look elsewhere, this is not the shoe for you.
Midsole and Ride of the Diadora Gara Carbon 3
What works for me
Diadora have taken to the kitchen and revamped their ANIMAPBX foam for the Gara Carbon 3. It is firmer, denser and has lost some of that feel of cushion that was so joyful in the Gara Carbon 1. The new version of Anima, according to Diadora’s science guys, gives 5% more energy return than the previous version. The newest Gara Carbon has an impressive 85% claimed energy return. This comes from the reduced deformation under pressure during the foot strike. Now, doing a Stryd comparison between my original Gara and these would be very unfair. One is fresh out of the box while the other has a couple of hundred miles through them.
That said, there is no need for much science when they are on foot. The feeling is definitely firmer. This will please those who like a more stable base underfoot. The energy return is definitely there. Stryd tells me that they give me a higher LSS score (a proxy for energy return) than any other race shoe which I have run in this year. This is reflected in the paces I have received in return for my efforts. They are efficient and work well.
I have had the Gara Carbon 3 moving at paces from 5:30/km on warm ups to 2:45/km on 200m reps. They have felt good underfoot at all of these paces. While I wouldn’t want to use them as easy day shoes, you won’t regret having them for the whole workout or race including warm up and cool down.
People who like a little more stability under their foot will probably enjoy this denser new foam. If you are looking for a feel of the original or second version, it is worth trying before you buy. Heavier runners may also find that the denser foam works well as it lead to extra durability over those far less dense foams which can compact down and lose their magic.
What doesn’t work for me
There is nothing that doesn’t really work for me with the new midsole compound. The data shows that they are efficient and reward me for my efforts. The issue I have with the midsole, much like with the Under Armour Velociti Elite, is that I am not the biggest fan of the feel of the shoe. They are rather firmer than my preferred choices. That said, they have softened up over the 100 or so kilometres I have put through them over the past weeks.
Outsole of the Diadora Gara Carbon 3
Grip and Traction
I have run on wet and dry roads with the Gara Carbon 3 and found no issues with the rubber compound. Cornering is no issue and the traction allows the power to be turned into pace while not wasting energy with slippage. Coverage is ample no matter where you land in the shoe and it is holding up well to the running put through it so far.
Durability
This is where I do have a question about the Gara Carbon 3. Already, on the bottom of both shoes, the exposed ANIMAPBX has started to take damage from the road. In the forefoot, where I have run on some delightfully damaged roads, there are chunks missing from the area around the carbon plate. There are also noticeable dents on both lateral and medial sides of the exposed plate.
While it has not impacted the performance of the shoe so far, it is a worry that foam is being damaged and worn away in high use zones. More running is needed to see how long the foam will last. We will keep you updated.
Conclusion
Value for Money
The Gara Carbon 3 are fast shoes. There is no doubt about this. At £250 they sit in the mid tier of race day shoes. The Matryx upper with the new reinforcement adds value to the package as durability of this aspect will be higher. However, the damage to the midsole foam I have already found makes me wonder how long they will last. While some shoes, like the adidas Pro Evo v1, are incredibly expensive and not designed to last long, something like the Gara Carbon should have a longer lifespan in your running rotation.
Time will tell how the value holds with the durability.
Fitting it into a shoe rotation
They are carbon plated race shoes. This is where they will be used in a rotation. While there have been arguments from some members of our team about the benefits of using super shoes for recovery, I would be surprised to see many people having these in their “Top Recovery Shoes of 2026” lists.
For me, due to the fit issues I have had with them, they will be a choice for 5 – 10k races where the narrowness will not impact performance.
Final Verdict
I loved the original Gara Carbon. It felt like magic on foot and I had some excellent runs in it. Part of me was hoping to open the box and find a new version of those awaiting me. What I found was a different beast. Narrower, firmer and slightly less wild. I’m not going to lie, I was slightly disappointed. The shoe works very well but the feeling isn’t the same.
It is by no means a bad shoe but the character has changed. Like in later series of TV series, your favourite character gets a new writer and, while they look the same, there is something slightly off. This is how I feel about the Gara Carbon 3. For people new to Diadora racing, it will make an excellent shoe. For those looking to rekindle the old magic, you may find something lacking.
Comparisons Against Similar Shoes
Diadora Gara Carbon 3 vs. Nike Vaporfly 4
Both shoes here have a similar feel to them. Slightly firmer feeling underfoot but with good efficiency to their ride. The Vaporfly 4 is the lighter shoe and has a more acomodating fit for most feet. The Vaporfly is also currently available for a much lower price in many sales around the internet.
Diadora Gara Carbon 3 vs. HOKA Rocket X 3
For me, these are similar feeling shoes. The Rocket X 3 has a better fit in the upper. Both shoes will have very good durability and the ride in them fels similar. They coth can turn over well but lack in all out aggression which some runners may prefer.
Diadora Gara Carbon 3 vs. Diadora Gara Carbon
I loved the original Gara Carbon (and still do). The new version just doesn’t have that same X-factor. It is still a very good shoe which improved on some of the weaknesses in the design of the first. The lace chain will not rip on the 3. However, if you were to offer me a box fresh version of each, I would take the original without a second thought.
Diadora Gara Carbon 3 vs. Under Armour Velociti Elite 3
Both firmer shoes. The Velociti Elite 3 has a much better fitting upper which will suit a much wider range of runners. Over distance, I prefer the feel of the midsole of the Gara Carbon 3. I don’t think I would like to run a marathon in either. The Velociti Elite 3 lacks the softness to take me to that distance while the Gara Carbon 3 is far too narrow in the upper. If you are looking for a shorter distance race shoe, then, depending on foot shape, either would work well.
Other People’s Takes on the Diadora Gara Carbon 3
Ivan’s Take on the Under Armour Velociti Elite 3
I’ll address the elephant in the room first, or rather a cheetah, as the Diadora Gara Carbon 3 is extremely narrow. It is by far the narrowest running shoe I have ever tried to lace up. At first, I thought it was a production error, but others on the review team reported similar experiences. Like Andy, I wouldn’t go beyond a 10K race in this shoe. My pinky toes get crunched, and my feet start feeling numb during runs. In general, I find many Diadora shoes run narrow, but not to this extent. I didn’t have this issue with earlier iterations. The matrix upper doesn’t help, as this material offers very little stretch.
As Andy mentioned, the third version feels somewhat firmer underfoot than earlier versions. I enjoyed previous iterations but found limitations with my biomechanics. They felt best when pushing the pace high up on the toes. The softer, squishier forefoot encouraged that aggressive running style. With my flatter midfoot stride and weaker push-off, I only unlocked them during short intervals. This third version’s denser, more responsive midsole creates a snappier, more natural transition overall. It suits my high-cadence midfoot strike much better. My leg turnover feels efficient, especially over longer efforts. That makes it even more frustrating that the narrow upper limits its usability for me.
So what is the best use case for the Diadora Gara Carbon 3? Honestly, it lacks something to compete with top-tier race shoes. It’s hard to pinpoint exactly what is missing. I suspect it’s a combination of weight, foam, and the geometry with a quite gentle rocker. These factors leave me slightly underwhelmed overall. Could I use it for key workouts or short intervals? Sure. Would it be my first choice for race day? Probably not. It would likely perform fine in a 10K race. It still delivers solid efficiency. However, it lacks some fun factor and true top-tier performance.
