We spent 7.2 hours reading reviews from experts and users. In summary, this is what runners think:

8 reasons to buy

  • The comfort level of the Mizuno Sky Waveknit 3 has received various levels of praise. Some say wearing the shoe feels like walking on clouds, while others report it is the most comfortable shoe they have ever worn. 
  • The XPOP midsole of the Sky Waveknit 3 is responsive, bouncy, and it performs just as well as it claims, according to some reviewers.
  • The shoe has a soft platform that helps ease the impact of running on hard surfaces, a user states.
  • Several wearers agree that the shoe offers excellent arch support.
  • A couple of users think the upper is breathable while still providing a secure fit.
  • Many buyers are impressed with the stylish appearance of the Sky Waveknit 3.
  • The lightweight quality of the shoe makes it ideal for hot, summertime runs, according to one commenter.
  • The shoe is flexible enough to be worn right out of the box, a few wearers have suggested.

1 reasons not to buy

  • The Mizuno Waveknit 3 is an expensive running shoe, as observed by some purchasers.

Bottom line

The Mizuno Sky Waveknit 3 has received many positive feedback from runners, including the shoe’s comfortability, supportive structure, and reliable features. Some, on the other hand, have disliked that the shoe is high-priced. Despite this, many users still consider the Sky Waveknit 3 as recommendable as it is “worth every penny,” and that, because of it, they would buy more Mizuno running shoes in the future.


Terrain: Road
Arch support: Neutral
Weight: Men: 11.3oz | Women: 9.3oz
Heel to toe drop: Men: 10mm | Women: 10mm
Pronation: Neutral Pronation
Arch type: High arch
Use: Jogging
Material: Vegan
Strike Pattern: Heel strike
Distance: Daily running | Long distance | Marathon
Release date: Jun 2019
Brand: Mizuno
Type: Heavy | Big guy
Width: Men: Normal, Wide | Women: Normal, Wide
Price: $160
Colorways: Black, Blue, Grey, Purple
Small True to size Large
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Expert Reviews

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91 / 100 based on 13 expert reviews

  • 99 / 100 | Scott Frankham

    Mizuno Wave Sky Waveknit 3 - It is not merely a reiteration; it is a reinvention!

    The Mizuno Wave Sky 3 is a game changer right from the start. To begin with, the Sky 3 is very different from the Sky 2. 

    It is not merely a reiteration; it is a reinvention! With changes to the mesh in the upper, the midsole, and the outsole, the Wave Sky 3 is a sequel that outshines the original.



    The new two-layered engineered stretch mesh features reinforced weave around critical areas of the midfoot and forefoot. It has a functional heat pressed logo around the midfoot saddle that supersedes the old-style stitched on a vinyl look of the previous model.  

    The leather toecap stitched on to the front of the predecessor has also been replaced by reinforced weave in the mesh. These changes have resulted in an overall modern look of the shoe with a significantly more comfortable fit.

    For me, the fit is more generous through the instep and yet still very snug and supportive with no tight spots. This is a critical improvement for those who wish to fit an orthotic into the shoe.  

    Inner lining

    Within the lining of the Sky 3, there are less palpable stitch lines, and the material is silkier than its predecessor. This benefits those who have any issues with sensation and who may be prone to blistering, especially if they were to wear the shoe barefoot.  

    The cushioning around the rearfoot and heel collar has remained relatively unchanged. It is both plush and snug; this provides a comfortable cushioned feel around the ankle bones and Achilles tendon.  


    Here is where there has been the most significant change since the previous version of the shoe. The Wave sky 3 is the first version of the wave sky range, not featuring the thermoplastic midfoot wave plate that has been featured throughout the Mizuno range for some time.   

    This change has resulted in slightly less torsion resistance through the midfoot and slightly more flex through the rearfoot. Functionally this change has, in my opinion, been a massive improvement to the shoe.

    There is now a smooth rear to forefoot transition when walking or running at no sacrifice to stability, weight, or cushioning. I would go so far as to say the new foam wave is a vast improvement on its predecessor.   



    For tech-heads who want more here, it is: The midsole is a combination of 3 elements, U4ICX, U4IC, and X-pop. The full-length top layer of Plush U4ICX provides ultimate cushioning.

    The bottom layer of responsive U4IC EVA foam provides shock absorption, and to top it off, between these layers within the midsole is a PU component called X-pop, which rebounds explosively while running, helping to drive you forward.  

    When I first ran in the Sky 3, I felt like I was running on pillows packed with gunpowder. This is my new favourite midsole overtaking the Brooks ghost by a margin of additional propulsion.   

    Heel counter

    The heel counter is classic Mizuno - solid medially and laterally, perfect for orthotic wearers, even thick ones.

    It is a combo of internal and external components with that beautiful Wave Sky logo emblazoned across the back. Tough, durable, and supportive, it provides that nice locked-in feel, many runners love when looking for a stable running shoe.  


    There are some notably awesome improvements here. First and most importantly, there is now full-length ground contact. What this means is that there is no section across the shoe where the outsole leaves contact with the ground.



    The benefit of this is, of course, maximum traction resulting in optimal stability. This means that anyone who may have any balance issues would feel safe and stable, making this shoe brilliant for runners at any level.  

    The other thing that this full-length contact does is really enhance that smooth transition from heel strike to toe off. The other notable feature is the addition of extra flex grooves in the forefoot, once more enhancing the smooth ride of this deluxe runner.  


    The Sky 3 looks great straight out of the box, sleek and lean; its shape reminds me of a great white shark. My first feel notes were: Stable ground contact, bouncy, best downhill runner, smooth midfoot transition, great forefoot cushion, explosively propulsive.  

    I’ve run over 100km so far, and its one shoe I’ll continue to run in after I finish my review.  From day 1, it has been sublimely cushioned and supportive for my 90kg frame. After the distance I’ve run, it’s still as good as new in all aspects.  

    I’ve run between 5km and 14km with no issues at all. The terrain I have tested it on has been road, gravel, wet mud, grass, and footpath, and it has been fantastic on all surfaces, even holding nicely on the mud.    

    The US Men’s size 9 weighs in at 310g and has wave Sky has a 10mm heel pitch, it is a neutral running shoe, so it is perfect for anyone, orthotic wearers and neutral runners alike.  

    Comfort, propulsion, stability, durability, and flexibility all are near perfect! This is one of my two favourite running shoes of all time. I highly recommend you take the leap and join me in the Sky!

    This expert has been verified by RunRepeat. Reviews are neutral, unbiased and based on extensive testing.

  • 91 / 100 | Stephen Christian

    Mizuno Wave Sky WaveKnit 3 - A quality offering from Mizuno

    More photos

    The Mizuno Sky Waveknit 3 is an interesting offering from the team at Mizuno. With an all-new tooling and knit upper, how does this road warrior perform?

    Let’s take a look!


    The look

    My first impression of the new model in the Sky line was definitely a positive one. The hybrid lacing system is a nice touch, and adds a cool detail to cleanly break things up a bit.

    The upper is strikingly similar to the Waveknit R3, invoking speed with the knit support ribs that fade from dark blue in the back to royal blue from the mid foot forward.

    The midsole of the Sky Waveknit 3 is one of my favorites aesthetically. The waves that taper from the back to front is a dynamic look from the company who first made Waves, many years back.

    The multi-density foams used in the midsole also allow for unique color blocking and contrast, which has been utilized well. The new XPOP is a nice touch of visible technology that brings a hint of color on the outsole.

    First take

    When I put the shoes on for the first time, I immediately noticed how well-cushioned the Sky Waveknit 3s are. A plush ride is usually expected from a shoe at this price-point, but the cushioning seemed more multi-dimensional than other shoes on this plane.

    There’s an active transitional feeling from heel to toe, rather than just a cushy slab underfoot. The flat outsole that doesn’t have an arch under the midfoot is reminiscent of the Brooks Glycerin and has a similar ground-contact profile.



    Regarding the upper feel, the Waveknit structure is a comfortable alternative to an open mesh. There’s a form-fitting aspect of the material that adapts to the overall shape of the foot, which can be beneficial to fit a wide range of runners.

    The padded collar and tongue provide comfort where it’s needed, especially when laced up snug. One thing that I noticed was how wide and roomy the toe-box was. Along with the length, the Sky Waveknit 3 runs a touch bigger than other Mizuno knit shoes I’ve worn.

    Run it

    The ride of the Sky Waveknit 3 is plush, as I had mentioned. Being more of a mid-foot striker, there’s a bit of the cushioning that’s lost on me, but there’s still plenty of impact protection up front and under the arch area.

    What’s nice is that it’s not super mushy, but fairly responsive. There’s a level of versatility in the midsole construction, in that the shoe performs well at slower paces, as well as shorter tempo runs.



    In fact, it almost seems as if the shoe has a mind of its own and gets more excited, the faster my pace gets.

    Regarding traction, I had no issues on a variety of surfaces, both wet and dry. There’s enough articulation in the rubber pods to make it through damp sidewalks, and would likely work well on gravel trails, as they did well in rocky construction zones.



    As was mentioned earlier, the lacing system is a hybrid, using standard eyelets at the top and bottom, and gillie lacing in the mid foot. The gillie eyelets do offer more of an even lockdown fit, as well making for quicker fastening.

    While there was an opportunity to tighten up the Waveknit Sky 3s, the overall fit of the shoe was a little bit larger than I expected. Though my heel didn’t slip, I very well could have gone a half size down.

    That being said, ascensions weren’t an issue, as I was able to climb hills without discomfort. With a little over a thumb’s width of room at the toe, there was a little bit of uncomfortable rubbing at the end of my toes at the end of longer runs.


    The Sky Waveknit is a quality offering from Mizuno. From an aesthetic and basic comfort standpoint, the shoe is aces.

    It’s a little bit heavier than I had expected, but to be fair, it is a highly cushioned shoe. The only qualm I had probably had to do with the fit and could be remedied by going down a half size.

    I would recommend trying them on in store to see how well they fit. Moving forward, I would definitely consider the Sky Waveknit 3 as a go-to shoe.

    This expert has been verified by RunRepeat. Reviews are neutral, unbiased and based on extensive testing.

  • 90 / 100 | Seth James DeMoor | Level 3 expert

    [The shoe] ...very comfortable through the collar... [and] that midsole, just nice and responsive but supportive as well.

  • 94 / 100 | JackRabbit | | Level 4 expert

    The Mizuno Sky Waveknit 3 is a great topiont [sic] for runners who run moderate mileage and appreciate shoes with a soft, comfortable feel, trend-forward style and a floating sensation under foot.

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  • The new Sky Waveknit 3 from Mizuno presents a combination of reliable technologies that aim to deliver a “floating” experience. It offers both style and functionality, appealing to users who highly regard aesthetic, while also targeting long distances. This neutral running shoe provides a comfortable cushioning and promotes natural movement.
  • This shoe uses Waveknit in the upper, which is known for its sock-like fit. This material provides a soft sensation and a dynamic stretch. The Waveknit is paired with AIRmesh for optimum airflow inside the shoe.
  • Mizuno employs several features in the sole unit for the ultimate functionality and performance of the Sky Waveknit 3. The midsole’s construction is spearheaded by the new XPOP foam and a variety of the brand’s proprietary technologies, all of which guarantee high-level responsiveness and a consistent transition phase. Meanwhile, the outsole’s popular X10 rubber delivers durability and comfort simultaneously.

The moderate structure of the Mizuno Sky Waveknit 3 allows the shoe to accommodate runners with low to medium foot volumes. It is also offered in a wide range of sizes. The Sky Waveknit 3 is available in Medium width for both the men’s and women’s versions.

Mizuno’s X10 outsole is made from a trusty carbon rubber, thus ensuring durability, especially at the heel and forefoot areas. Additionally, the X10 rubber equips the shoe with the necessary traction to efficiently carry out the transition phase. It is also characterized by a flexible quality, as it allows an easy and natural movement.

The outsole has an integrated ventilation system called the Intercool. It effectively prevents heat and humidity from building up inside the shoe, thus keeping the runner cool and dry.

The Mizuno Sky Waveknit 3 introduces the all-new XPOP, a next-generation foam made from polyurethane (PU). This material brings to the shoe a responsive quality, as well as an ultra-soft feel without sacrificing performance.

The U4ic serves as the main midsole component of the Mizuno Sky Waveknit 3. This full-length foam gives the shoe the cushioning and shock absorption for a smooth running experience. The U4ic boasts of being 30% more lightweight compared to other midsole materials. A variant of the U4ic, known simply as the U4icX, could be found in the heel area. It provides an additional layer of underfoot cushioning, which results in softened impacts during footstrike.

The Mizuno Foam Wave is also another new introduction to the brand’s running shoe line. It ensures a smooth-sailing activity over pavements. It also contributes to a stable ride. Combined with the XPOP foam, these two features provide the shoe with the floating sensation it boasts of.

SmoothRide Engineering gives midsole a rocker-chair effect. It reduces the rates of acceleration and deceleration for a more consistent transition. 

The AIRmesh is a soft and smooth upper material the equips the shoe with a comfortable, skin-friendly sensation.  It is made from a lightweight fabric, which contributes to quick airflow through visible pores in its surface. Aside from breathability, the AIRmesh also offers flexibility as the soft material allows for unrestricted movement.

A new Waveknit upper construction delivers comfort and natural mobility. Although tight-knit, the material is known for its stretchable quality. It is designed to continually adapt to the shape and movement of the foot.