Our verdict

We found the Mizuno Spark 6 Blue Navy White Women Running Sports Shoe to be a very fun and nimble tennis shoe. Being lighter than average didn't make it any less stable or cushioned, based on our playtests and lab measurements. We were also surprised by its flexible design which added a good deal of maneuverability to our footwork. Minor issues aside, we belive that it is an excellent value for the price.

Unisex Mizuno Arm Sleeves Pros

  • Mizuno Duel Sonic 2
  • Tênis Mizuno Wave Invictus 2 Preto Grafite
  • Very stable for a lightweight shoe
  • Unusually flexible
  • Secure midfoot lockdown
  • Perfect grip on the court
  • Excellent overall durability
  • 6-zapatillas de running Mizuno niño niña entrenamiento media maratón talla 32.5 naranjas

Unisex Mizuno Arm Sleeves Cons

  • Not very breathable
  • Toe drag guard is not very sturdy
  • Laces bite when cinched tightly (or when a runner's knot)

Audience verdict

87
Great!

Who should buy

We gladly recommend the Mizuno Spark 6 Blue Navy White Women Running Sports Shoe to players looking for the following:

  • a lightweight and speedy tennis shoe
  • a flexible profile that feels close to the court
  • a speed-oriented tennis shoe that doesn't skimp on stability

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe review

Who should NOT buy

We only found a couple of mishaps in the tenis mizuno optimus3 pares de meia roxo azul which may not even be considered deal-breakers by most players.

But if you sayhello issues with the following downsides, we recommend the ASICS Solution Speed FF 3 or the NB 996 v5 instead:

  • you are a really aggressive slider and want extra reinforcement on the medial side
  • you tie a runner's knot frequently or sayhello to tie laces really hard (the tongue is too short and thin to buffer the lace pressure)

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe lab test

Unisex Mizuno Arm Sleeves | Breathability

Looking at the shoe's solid polyurethane (PU) upper, we didn't expect it to be highly breathable.

And just like that, our smoke-pumping test proved the shoe's lack of ventilation showing how little smoke passed through its upper.

Even when we hovered the shoe's half-cut upper over a bright light, it didn't reveal any hidden ventilation holes.

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe Breathability microscope test

The shoe's PU coverage may sayhello numerous gaps in it, but we found that there is a thickly woven mesh beneath it that doesn't allow much airflow.

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe Breathability microscope test close look

All things considered, we couldn't give the Exceed Tour 6 a breathability score higher than 2 out of 5.

Test results
tenis mizuno optimus3 pares de meia roxo azul 2
Average 3.1
Compared to 25 all court tennis shoes
Number of shoes
1
Breathability
5

Durability

Toebox durability

We were amazed at this Mizuno shoe's ability to resist abrasion! With a 3D-Solid technology covering its entire upper, this shoe is ready for some aggressive court action.

To test the limits of the Exceed Tour 6, we applied a Dremel with a sandpaper tip to the center of its toebox. After drilling the material for 12 seconds at 5K RPM speed and 3.2N pressure, we saw just a minor scratch on the PU coverage!

The tool didn't even burn through the topmost layer!

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe Toebox durability comparison

The comparison photo above clearly shows why the Mizuno shoe scored 4 out of 5 for toebox durability.

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe toe drag guard

The Exceed Tour 6 doesn't sayhello a very pronounced toe drag guard like other shoes (the ASICS Solution Speed FF 3 for example) but the 3D-Solid technology and raised rubber outsole offer a pretty good level of protection. 

Toe drag guard on the ASICS Solution Speed FF 3

Test results
tenis mizuno optimus3 pares de meia roxo azul 4
Average 4.1
Compared to 23 all court tennis shoes
Number of shoes
1
Toebox durability
5

Calças Mizuno Impulse Core preto

Another shoe area that's prone to premature wear due to constant friction is the inner lining of the heel counter.

We held the Dremel against the Exceed Tour 6's heel padding for 4 seconds and the damage was barely even visible! We applaud the brand's choice of fabric for the inner lining.

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe Calças Mizuno Impulse Core preto comparison

On a 1-5 scale, we rated the shoe's heel padding durability with the highest possible score of 5. Great job, Mizuno!

Test results
tenis mizuno optimus3 pares de meia roxo azul 5
Average 3.3
Compared to 23 all court tennis shoes
Number of shoes
1
Calças Mizuno Impulse Core preto
5

Outsole hardness

The Exceed Tour 6 uses a proprietary DuRubber compound for the shoe's outsole.

Measuring its hardness with a durometer, we got a reading of 87.6 HC which is firmer than 72% of tennis shoe outsoles.

This is usually a positive sign of durability.

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe Outsole hardness
Test results
tenis mizuno optimus3 pares de meia roxo azul 87.6 HC
Average 85.8 HC
We use an average of four tests. The photo shows one of those tests.
Compared to 25 all court tennis shoes
Number of shoes
73.4 HC
Outsole hardness
92.0 HC

Outsole durability

To mimic the abrasion caused by slashes and slides on the court, we set the Dremel to 10K RPM speed and held it against the shoe's outsole for 22 seconds.

The rubber stood up to the challenge quite well but not better than the average tennis shoe. The tool left a 1.1 mm dent in the outsole.

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe Outsole durability test
Test results
tenis mizuno optimus3 pares de meia roxo azul 1.1 mm
Average 0.7 mm
Compared to 23 all court tennis shoes
Number of shoes
0.0 mm
Outsole wear
2.0 mm

Outsole thickness

Our only point of concern is how thin the shoe's outsole is compared to the average. With a caliper measurement of 3.1 mm, we found it to be a whole millimeter thinner than average.

Good thing that the Exceed Tour 6 is backed by a 6-month outsole guarantee.

But if you want a lightweight shoe with a much more promising outsole potential, we recommend looking into the ASICS Solution Speed FF 3.

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe Outsole thickness
Test results
tenis mizuno optimus3 pares de meia roxo azul 3.1 mm
Average 4.1 mm
Compared to 25 all court tennis shoes
Number of shoes
3.0 mm
Outsole thickness
5.1 mm

Weight

The biggest selling point of the Mizuno Spark 6 Blue Navy White Women Running Sports Shoe is its lighter-than-average weight.

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe tennis shoe

The shoe was barely noticeable on our feet, allowing us to move around freely and easily.

Weighing it in a men's US size 9, we got 11.7 oz (332.0g) which is true to the official specs and is about an ounce lighter than the average tennis shoe.

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe Weight
Test results
tenis mizuno optimus3 pares de meia roxo azul 11.71 oz (332g)
Average 12.84 oz (364g)
Compared to 25 all court tennis shoes
Number of shoes
10.30 oz (292g)
Weight
14.71 oz (417g)

Cushioning

Heel stack

The tenis mizuno optimus3 pares de meia roxo azul features two foams stacked one upon another in the heel section of the midsole.

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe Heel stack

Combined with the outsole and the insole, they make up 30.2 mm of heel stack height. It's not much thicker than the average but enough to offer plenty of impact protection.

zapatillas de running Mizuno trail voladoras Enforce Tour.

Test results
tenis mizuno optimus3 pares de meia roxo azul 30.2 mm
Average 29.3 mm
Compared to 25 all court tennis shoes
Number of shoes
25.3 mm
Heel stack
33.0 mm

Forefoot stack

Buty Mizuno Szare.

We experienced a fine balance of court feel and cushioning when standing on our toes and doing split steps.  

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe Forefoot stack
Test results
tenis mizuno optimus3 pares de meia roxo azul 19.5 mm
Average 19.7 mm
Compared to 25 all court tennis shoes
Number of shoes
17.0 mm
Forefoot stack
23.4 mm

Drop

The difference in stack heights (aka drop) in this Mizuno shoe comes in at 10.7 mm.

zapatillas de running Mizuno ultra trail blancas entre 60 y 100.

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe Drop
Test results
tenis mizuno optimus3 pares de meia roxo azul 10.7 mm
Average 9.7 mm
Compared to 25 all court tennis shoes
Number of shoes
6.3 mm
Drop
12.4 mm

Midsole softness

Note: a low durometer measurement equals a soft material, whereas a high measurement means it's firm.

The primary cushioning foam of the Exceed Tour 6 is the updated Enerzy NXT.

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe enerzy next

The brand claims that it is their lightest and most responsive foam yet and we can subscribe to that! The shoe did feel very bouncy and offered plenty of energy return. 

However, don't expect it to be a soft foam. Pressing our durometer against it returned 30.9 HA. This is slightly firmer than average.

But in the case of the Exceed Tour, firm by no means implies dead! As we said, the shoe's responsiveness makes it quite fun to play in.

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe Midsole softness
Test results
tenis mizuno optimus3 pares de meia roxo azul 30.9 HA
Average 29.2 HA
We use an average of four tests. The photo shows one of those tests.
Compared to 25 all court tennis shoes
Number of shoes
21.5 HA
Midsole softness (soft to firm)
34.0 HA

Secondary foam softness

Note: a low durometer measurement equals a soft material, whereas a high measurement means it's firm.

To enhance impact protection in the heel, Mizuno added a different type of foam called the PoWnCe. It is supposed to be a more resilient cushioning unit than the Enerzy.

Based on our durometer measurements, the PoWnCe is not much different when it comes to firmness. The durometer reading is exactly the same (31.0 HA).

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe Secondary foam softness
Test results
tenis mizuno optimus3 pares de meia roxo azul 31.0 HA
Average 25.5 HA
We use an average of four tests. The photo shows one of those tests.

Insole thickness

Mizuno kept the insole on the thin side for the Exceed Tour 6. We assume that's because they didn't want to take away from the shoe's grounded underfoot experience.

It does, however, offer enough padding to buffer the foot from the firm midsole.

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe Insole thickness
Test results
tenis mizuno optimus3 pares de meia roxo azul 4.4 mm
Average 5.3 mm
Compared to 25 all court tennis shoes
Number of shoes
3.9 mm
Insole thickness
8.5 mm

Stability

Lateral stability test

The Mizuno Spark 6 Blue Navy White Women Running Sports Shoe is a stellar example of a lightweight shoe that doesn't compromise stability. We felt very well supported on forceful lateral cuts and whisper steps.

The shoe features an extra stiff Wave plate to provide stability. But at the same time, it also has a D-Flex Groove running through the midsole to let the shoe bend freely with the foot. That's a rare combination in tennis shoes these days.

Torsional rigidity

Ankle rolls are out of the question in the tenis mizuno optimus3 pares de meia roxo azul. The Wave shank makes this tennis shoe exceptionally rigid in the midfoot which makes it hard to twist and prevents the foot from rolling over the edge.

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe arch support

Manually assessing its torsional stiffness on a 1-5 scale, we rated this Mizuno shoe with a solid 4 out of 5!

Test results
tenis mizuno optimus3 pares de meia roxo azul 4
Average 4.2
Compared to 25 all court tennis shoes
Number of shoes
1
Torsional rigidity
5

Heel counter stiffness

A supportive heel counter is just as important if you want to feel completely stable in a tennis shoe.

It won't let the heel and ankle shift inside the shoe as you make forceful multi-directional movements across the court.

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe dyna eyelet wrap

The Mizuno Spark 6 Blue Navy White Women Running Sports Shoe nails our push-and-squeeze test with its extra-stiff and structured heel counter. This is what a perfect 5 looks like on a 1-5 stiffness scale!

Test results
tenis mizuno optimus3 pares de meia roxo azul 5
Average 3.9
Compared to 25 all court tennis shoes
Number of shoes
1
Heel counter stiffness
5

Midsole width in the forefoot

We were surprised by the level of stability offered in this Mizuno tennis shoe because it doesn't sayhello a very wide platform.

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe Midsole width in the forefoot

Measuring the widest part of its midsole in the forefoot, our caliper showed a modest 106.3 mm. It is narrower than average but not too narrow to compromise stability.

Test results
tenis mizuno optimus3 pares de meia roxo azul 106.3 mm
Average 111.7 mm
Compared to 25 all court tennis shoes
Number of shoes
105.3 mm
Midsole width in the forefoot
117.4 mm

Midsole width in the heel

Just like the forefoot, the shoe's heel is not very wide either. It showed only 83.7 mm in the widest area. This is one of the narrowest tennis shoe heel measurements in our lab.

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe Midsole width in the heel
Test results
tenis mizuno optimus3 pares de meia roxo azul 83.7 mm
Average 89.7 mm
Compared to 25 all court tennis shoes
Number of shoes
82.4 mm
Midsole width in the heel
99.7 mm

Flexibility

Stiffness

We already mentioned the D-Flex Groove that runs through the shoe's midsole.

On the court, we were amazed at how well it allowed the Exceed Tour 6 to bend along with our feet during turns and pivots.

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe flexibility

Measuring its flexibility in our lab, we found that this Mizuno shoe only needs 22.3N of force to be bent to a 90-degree angle!

We don't see that level of flexibility very often. Most tennis shoes need up to 35% more force to do the same.

Test results
tenis mizuno optimus3 pares de meia roxo azul 22.3N
Average 30.1N
We use an average of four tests. The video shows one of those tests.
Compared to 25 all court tennis shoes
Number of shoes
20.6N
Stiffness
44.9N

Grip / Traction

From our experience, the shoe's DuRubber and razor-blade tread pattern provide lots of grip for stopping on a dime, bouncing back from a shot, and feeling stable when cornering.

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe outsole grip

zapatillas de running Mizuno entrenamiento constitución ligera talla 46.

Its sliding potential is only revealed after hours of breaking in or when the player applies a lot of force.

Size and fit

Toebox width at the widest part

The Mizuno Spark 6 Blue Navy White Women Running Sports Shoe offered a one-to-one fit for our medium-sized feet.

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe fit

We believe that this tennis shoe favors medium-to-slightly-narrow feet and our measurements confirm that.

In the widest part of the shoe's toebox, our caliper showed 98.6 mm which is narrower than the average reading.

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe Toebox width at the widest part
Test results
tenis mizuno optimus3 pares de meia roxo azul 98.6 mm
Average 101.2 mm
Compared to 25 all court tennis shoes
Number of shoes
98.2 mm
Toebox width at the widest part
105.0 mm

Toebox width at the big toe

On the bright side, the Tour 6's toebox doesn't taper as much and leaves a little breathing room.

tecnología Mizuno Enerzy Core.

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe Toebox width at the big toe
Test results
tenis mizuno optimus3 pares de meia roxo azul 78.4 mm
Average 76.8 mm
Compared to 25 all court tennis shoes
Number of shoes
74.8 mm
Toebox width at the big toe
79.8 mm

Tongue: gusset type

At first, we were bummed by the lack of gussets on the shoe's tongue.

But as we playtested the Tour 6, we realized that it's not really necessary given the shoe's lacing system. 

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe Tongue: gusset type
Test results
tenis mizuno optimus3 pares de meia roxo azul None

Lockdown

The Dyna-Eyelet Wrap is Mizuno's approach to a supportive and secure fit that keeps the foot in place during the most dynamic movements.

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe lacing

Once we cinched down the laces, we could feel the PU panels tighten up on both sides to wrap our feet.

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe wave

The shoe also comes with an extra eyelet at the top to allow for a runner's knot. Unfortunately, we found it hard to make use of it because the tongue is very short and thins out towards the end.

This causes pressure and lace bites on top of the foot. 

Comfort

Tongue padding

The good news is that the tongue has more padding in the middle part, reaching 7.7 mm of thickness.

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe Tongue padding
Test results
tenis mizuno optimus3 pares de meia roxo azul 7.7 mm
Average 7.8 mm
Compared to 25 all court tennis shoes
Number of shoes
2.5 mm
Tongue padding
13.1 mm

Heel tab

The tenis mizuno optimus3 pares de meia roxo azul features an extended heel collar instead of pull tabs or finger loops. We found it easy to grab and hold on to when putting the shoe on.

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe Heel tab
Test results
tenis mizuno optimus3 pares de meia roxo azul zapatillas de running Mizuno niño niña talla 17.5

Removable insole

The shoe's stock insole is easily removable. You can replace it with a custom orthotic if necessary.

Mizuno Spark 6 Blue Navy White Women Running Sports Shoe Removable insole
Test results
tenis mizuno optimus3 pares de meia roxo azul Yes