Mizuno Wave Horizon 9 Review
By Bach Pham and Matt Klein
Mizuno Wave Horizon 9Price: $180 at Running Warehouse
Weight: 11.3 oz, 320 g (men's size 9)
Stack Height: 41 mm heel / 33 mm forefoot
Drop: 8 mm
Shoe Purpose: Stability Daily Trainer
Pros: Balanced stability on both sides, Enerzy NXT can be energetic, Great walking shoe
Cons: Heavier end, foam takes time to warm up on runs, heel not smooth
RUNNING SHOE SUMMARY
The Mizuno Horizon 9 is a cushioned daily trainer for runner's with moderate-to-high stability needs. The shoe features a top layer of Enerzy Nxt, their more plush foam, while regular Enerzy is used as the bottom layer to provide a more stable base. The Horizon sticks to its wave design which puts more of the stable Enerzy foam in strategic locations to help provide extra stability. For runners who want a comfortable and stable trainer to log easy and long miles, the Horizon 9 remains a consistent flagship walking/training shoe for Mizuno that doesn't rock the boat in version 9.
SIMILAR SHOES: Puma Forever Nitro 2
PAST MODEL: Mizuno Wave Horizon 8
FIT
(To learn how a shoe should fit, check out our full podcast on fit by Matt Klein.)
Matt: The Mizuno Wave Horizon 9 fits me slightly short in my normal men's size 10. This is mostly due to the tapered toe box, although on the run, the mild stretch of the Smooth Stretch Woven Upper does make this a bit more tolerable. The upper is a thicker knit/woven material that secures the foot quite well, but is slightly warmer than I expected. The forefoot is normal in width although has some mild stretch. This continues into a normal to slightly snug midfoot thanks to the thicker gusseted tongue. The tongue is highly padded, which makes tightening the laces easy. The instep is slightly lower thanks to the thicker tongue. The heel fits normally with moderate heel collar padding. There is a stiff heel counter that is quite prominent, which secures the heel well. I had no heel slippage in this shoe and did not have to lace lock it. However, those with heel sensitivities will notice this counter and it may not work for them.
Typical Size: Men's US Size 10
Shoes
that have fit Matt well: On Cloudboom Strike, Hoka Gaviota 6, Xero HFS,
Topo Cyclone 3, Saucony Azura, Salomon Aero Glide 3
Shoes that have fit snug: Hoka Arahi 7, Brooks Launch 11, Diadora Mythos Vigore 3
Shoes that have fit large: Salomon S/Lab Phantasm 2, Adidas Agravic Speed Ultra
Bach: The fit of the Horizon may be on the slightly snug side for some. I did feel slightly cramped in thicker socks. In regular socks the fit was fine for my needs. The toebox is slightly short, but never gave my toes issues. The slightly more snug fit does make for a very secure lockdown throughout the shoe. This is a stability shoe and it lets you know with a very rigid and secure heel, and tons of structure everywhere. You aren't going anywhere but forward in the Horizon. I think it could be worth considering a half size up if you like ample space or tend to be between sizes, but if you have standard or narrow feet you should be fine in your normal sizing.
Typical Size: Men's US Size 9.5
Shoes that have fit Bach well:
Nike Pegasus 40, Saucony Guide 17, Mizuno Wave Inspire 19, Saucony
Endorphin Speed 3, Nike Structure 25
Shoes that have fit snug: Hoka Arahi 7, Asics Kayano 30, Puma Electrify Nitro, Brooks Hyperion, Hoka Clifton 9 GTX
Shoes that have fit large: Hoka Gaviota 5, Reebok Floatride Energy X
Doctors of Running Checklist
Is This a Good Shoe for Walking: Yes
Is This a Good Shoe for Standing: Yes
Is the Forefoot Flexible: No
How Flexible is the Shoe: No
Is This a Good Heel Bevel: No
Recommended for Haglunds: No
Is This Shoe Orthotic Friendly: No
Recommended for Sockless: Yes
Durability Expectation: High
PERFORMANCE
Matt: The Mizuno Wave Horizon 9 is a heavy duty walking/slower running shoe. The Mizuno ENERZY NXT is firm and stiff at first, but breaks into a firmer and bouncier ride that makes the shoe feel lighter than its listed weight. It is still a massive and heavy shoe, the heaviest I have tested in a while. The foam continues to improve slightly, but the ride is best during standing, walking and slower mileage. I have stood for long hours in this shoe and it is extremely comfortable given the highly stable platform. Walking is solid but running took some getting used to. There is almost no heel bevel, which makes heel transitions clunky especially with the > 40mm heel stack height. This caused me to adapt and land farther forward and while the foam has softened slightly, this transition has not improved much. The forefoot has been good with mild flexibility and a smooth transition, thanks to a longer and gradual forefoot rocker. I would suggest this shoe more as a walking/standing daily shoe than a running shoe, except for those who land farther forward.
Surface and durability-wise, this shoe is fantastic. Road and smooth surfaces are best, but the extensive outsole does great even on softer surfaces. The traction is fair and luckily the heel/midfoot groove is shallow enough that rocks do not get stuck. The outsole durability is incredible as always, with no wear after 40 miles of running. The midsole has only changed slightly and I expect a ton of miles of out this Horizon. I have taken several versions to well over 100 miles and never had them break down. I expect the same out of these.
Bach: The Mizuno Wave Horizon 9 miles were very hot/cold for me. The Enerzy Nxt/Enerzy duo during the first mile can feel a little stiff and firm. As miles clock in though, the shoe livens up and makes turning over more easily (for runners who are more forward, which I am). I was hoping it would be just a break-in issue, but with more miles the above has remained constant. I would really enjoy the Horizon 9 more if the midsole was just good and ready the second you hit pavement, because once that foam really wakes up it's a great feeling.
The weight is a little hefty (however, slightly lighter than last year), but the shoe does get into rhythm okay in the mid-to-forefoot. The weight feels more balanced than ever thanks to the removal (from what I see at least) of a core in the heel. In past years, Mizuno has used some kind of really soft core within the heel to contribute to some bounce, but at the cost of more weight. I'm glad to see just the dual layer system in this version. The heel is a bit clunky due to not much of a heel bevel. It's kind of a contradiction of the design, as the heel area is by far the softest part and past editions really try to exemplify that by putting the most "bounce" into that area, but the heel is not smooth which makes you want to land more forward where it is less bouncy and more firm. This makes the shoe feels best at easy shuffling paces. The forefoot feels massive and really stable, making it easy to land on. The mild rocker helps with forefoot as well to roll you through.
The outsole remains thick and durable as ever for the series. It is also smooth which helps make landings feel less harsh, but there's still a lot of rubber underfoot which contributes to the shoe's firmness. I found the shoe okay for dirt paths and totally fine for wet roads.
For walkers, this is a great option. The series has always been a recommendation for our team due to the balanced stability. This remains true with that least Horizon.
STABILITY
(Learn more about stability in our full guide)
Matt: The Mizuno Wave Horizon 9 is a moderate stability shoe with a highly stable overall ride and a significant medial post in the heel and midfoot. The sole is quite wide with no narrowing and more medial sole flare than lateral. There are no sidewalls for those who are sensitive, but the large medial post is integrate lower in the midsole, which still provides a high level of medial support without excessive medial pressure. The wider forefoot shape adds inherent stability that adds the finishing touch, although those with significant stability needs up front may not have enough. The best part about the Horizon 9 is that the stability is so well integrated you feel it without noticing it. Those sensitive to more aggressive and pressure based stability mechanisms will do quite well with the central guidance throughout the length of the shoe and the medial support in the heel/midfoot.
Bach: More than past years, I really felt the forefoot of the Horizon to feel ample and stable. Note: they probably changed nothing, but the forefoot medially just felt really present. Not in an intrusive way, but it was notably secure. The dual wave system remains a solid and stable stability device here. Paired with the generous width and sole flaring, there's a ton of stability built in. The outsole also wraps up medially in the heel and midfoot, offering extra resistance for medial stability runners. It's all done very well without being intrusive. None of the mechanisms in the shoe irritated my flat feet in any way.
The upper is also layered with structure everywhere to secure the foot. For runners who need medially stability in particular, this has a ton of it throughout the shoe. Runners with lateral stability needs may get along okay, but the stability is most prominent medially.
Culture Corner: Why Do Brands Not Take More Risks on Stability Shoes?
By Bach Pham
In a time of innovation, where shoes continue getting taller and softer when we thought there was nowhere left to go, and brands pushing the envelop on trainer designs to even their flagship models, stability shoes continue to lay kind of flat. Yes, the market has changed and there are no longer posted shoes as the majority which is a big deal, but as far pushing the envelop for runners who need stability, whether it comes to performance shoes or racers, it seems like this space of runners have been all but left behind. Back in the 2010s, there were some true stability racing shoes, when flats were supreme. And great ones at that. Today, the closest thing we've had is the Saucony Tempus, which was recently discontinued in the US.
Why do brands not take more risks in this category? The answer may be as simple as it's too small. The field for stability shoes has tended to be more quiet, and it might financially just make more sense to keep the category at a minimum for brands instead of invest in time and energy. It's also a category of shoes often referred to people for walking. This is why we likely see less aggressive shoe designs, because stability trainers need to accommodate both runners and walkers.
The reality is the only way this genre of shoe will ever have a resurgence is through readers like you who create the demand for it. We saw the market shift towards more stable neutral design languages in recent years, because many runners didn't want to run in things that felt risky for no reason. To make stability racing shoes a reality, it takes feedback and noise from runners. So the next time you're talking to a shoe rep, visiting your local run store, or meeting with a brand to test drive a shoe, let them know you want stability racing shoes, because that is the only way we can bring this back and make it relevant.
RECOMMENDATIONS
Matt: While I appreciate the Horizon for staying true to what it is, some weight needs to drop. This is one of the heaviest shoes out there and the technology is there to get this shoe a bit lighter. I don't expect sub 10 oz weight, but sub 11 is the minimum. I also think there needs to be at least a small heel bevel, especially with a stack height over 40mm. The toe box is also tapered, which is rare for Mizuno and is something I would suggest not doing given what we know about foot biomechanics. If those things can be updated, I think this shoe will compete more than prior versions while still keeping true to the series.
Bach: Mizuno continues to make safe, reliable changes to the Horizon series. I think the shoe could use one major leap forward in future iterations, especially to keep up with the innovations in the rest of their line-up. Finding a way to trim well over an ounce would be a big change for the shoe and help make it a great long run option. I don't think it needs to be a super trainer that's 9 oz or less and all the bells and whistles, but to be competitive with the current market I think shaving weight through a lighter midsole would be a big deal for the Horizon. I also agree that a bevel, if the heel is to remain the tech center of the shoe, would really help make the tech standout more by smoothening the ride out and allowing you to really enjoy the heel. Otherwise, I would like to see some more elements shift forward to make the forefoot more exciting.
WHO IS THIS SHOE FOR?
Matt: The Mizuno Wave Horizon 9 is a highly cushioned, firmer, sturdy and heavier daily trainer for those with moderate stability needs. Those with normal to narrow-width feet will do better with the tapered upper, which secures quite well. Those who land farther forward, want a firmer but bouncier ride, want a walk/run shoe and who don't mind additional weight will enjoy the ride. The stability mechanism is what really shines, with moderate stability in the heel/midfoot and significant central guidance that is extremely well integrated into the shoe. Plus, some of the colorways are pretty great for daily wear if you want more subtle colors. The Horizon series continues to provide a unique shoe that plays it mostly safe with updates.
Bach: The Mizuno Wave Horizon 9 continues to be a cushioned daily trainer for runners with moderate stability needs. If you are a fan of the series, this only got a little better. For newcomers, if you are looking for a stability shoe with more medial stability without being a post, this is a solid option. It's not the most fun, but it does pack tons of security. If ride is your priority, there's many other options, but this remains one of the more stable options in the market for runners. A great walking/standing shoe and fairly good mileage eater, the Horizon 9 plays it real safe.
GRADES
Matt
Fit: B+ (Secure, warmer upper with tapered toe box. Stiff counter locks heel in well but may bother some)
Performance: B- (Weight is heavy but firmer bounce keeps shoe moving. Clunky heel transition makes this shoe better for those who land farther forward. Excellent walking/standing shoe)
Stability: A- [Moderate Stability] (Wider sole with firmer but bouncier ride provide centered guidance while a prominent but well-integrated medial post in the medial heel/midfoot provides a solid amount of support)
Value: B ($180 is pretty expensive but this shoe is incredibly durable. Definitely premium walking shoe but less so for running)
Personal: B- (There are things I greatly appreciate about this shoe, but find it better for walking/standing than running. This shoe needs to lose some weight based on current available materials/resources and not taper the toe box so much)
Overall Design: B
Bach
Fit: B+ (Fit locks down well and provides a ton of structure. Just slightly snug)
Performance: B (The weight keeps this a regular no-frills trainer that doesn't excel at anything, but logs miles well)
Stability: A- (Balanced wave design offers great medial and forefoot stability)
Value: B+ (A steep $180, but this is an absolute tank that will last many miles)
Personal: B (Horizon remains safe and unchanged if you are a long time fan, but there are so cushioned stability shoes that get the job done well in 2026 that this, for me, sits a little behind)
Overall Design: B/B+
SHOP | SUPPORT DORMizuno Wave Horizon 9Price: $180 at Running Warehouse
Shop Men | Shop Women
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FURTHER READING
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