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Mizuno is one of the most respected names in the running industry. With modern shoes which are often at the cutting edge of technology, the shoes from the manufacturer are received with joy by the running community. The Wave Rider 21 is no different. Made with the triple zone upper, the running shoes are comfortable, secure and affordable. As many mid-range options, they have a few characteristics which bring them closer to the premium designs, which can only be another plus for most runners.

10 reasons to buy

  • Made with the Airmesh upper for next-level breathability, recommended for long running sessions to keep your feet cool

  • The dynamic fit technology integrates the upper which is flexible and it expands with your foot for a more natural feel

  • The intercool technology integrates proper ventilation which recommends the shoes for running even during the hot summer days

  • Mizuno Wave technology for the ultimate comfort while running

  • Integrated with the SmoothRide design for a better transition from heel to toe and proper biomechanics with reduced impact on your joints

  • Made with Mizuno’s X10 outsole which can handle all types of flat surfaces

  • Designed with the popular U4ic midsole for the best shock absorption

  • The midsole is made with the Cloudwave technology for added comfort with increased cushioning

  • Made with a premium sockliner for a comfortable all-day feel

  • Redesigned upper with a fresh new approach to a popular running series such as the Wave Rider

2 reasons why not to buy

  • Reduced number of vivid colors

  • Not best for versatility as a casual shoe


90 / 1 rating

September, 09.2018 90 / 100 by: Adam Wilson


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Features & Specs

Weight: Moderate
10.2 oz 289 g
44.07% of shoes are lighter
Very light Very heavy
Weight: Moderate
8.7 oz 247 g
46.15% of shoes are lighter
Very light Very heavy
Heel to toe drop: 0
12 mm
42.59% of shoes have less drop
Zero Very high
Heel to toe drop: Very High
12 mm
39.58% of shoes have less drop
Zero Very high
Heel height: Low
30 mm
70.21% of shoes are lower at the heel
Very low Very high
Heel height: Low
30 mm
73.81% of shoes are lower at the heel
Very low Very high
Forefoot height: Very Low
18 mm
38.3% of shoes are lower in the forefoot
Very low Very high
Forefoot height: Very Low
18 mm
42.86% of shoes are lower in the forefoot
Very low Very high


With a new design and improved technologies, the shoes represent an attractive option for Mizuno fans. Even upgrading from the previous version is tempting for many runners, especially in the conditions in which they would have to work with better breathability and an up to date design based on the same plate support which made the series so popular.


There are multiple technologies integrated into the Wave Rider 21. Many of them are based on designs which are recommended to those seeking improved overall comfort, such as the redesigned upper. With quality mesh materials, you now have more freedom to train longer, which can mean that you can upgrade your old Wave Riders as well.

The midsole is also worth mentioning, even if it is not entirely new. But the series now see the Cloudwave technology which has been received well with the fans of the manufacturer. Its comfort has never been as fine-tune as it is now.


The X10 rubber outsole is among the main strengths of the shoes. With a design which favors durability, the shoes can tackle all types of flat surfaces. Even if some runners take them off the beaten path as well, they are not really made for these surfaces and their best performance is achieved on flat surfaces. Taking the shoes out on the track is where you can really test their performance at top speeds, especially in dry conditions.


The midsole features a few of the most interesting technologies from the manufacturer. Made with a solid midsole based on the Wave plate support and on the U4ic cushioning, the shoes represent one of the most interesting solutions when it comes to better overall performance on long runs. If you only train for sprints, you may not be able to tell that the midsole is improved in performance.


The upper is now completely redesigned and it represents one of the main strengths of the shoes. With a better outlook of a profile which doesn’t look far from premium, the breathable upper is one of the main strengths of the shoes. But the ventilation is not the only characteristics worth noting about the upper. With a padded ankle collar, you have the certainty that you will be comfortable, even when pushing your speed limits.

Size And Fit

The shoes are among the comfortable options which fit very well. The Dynamotion Fit technology ensures that you have the space to feel comfortable from all angles. Even more, it is also worth noting that they will work for people with wider feet as well. If you want to ensure the ultimate fit, you need to consider the shoes as true to size and you also need to expect plenty of forefoot space for overpronation. The classic lacing also ensures that you are quickly able to set your own desired lockdown for proper comfort and control at any speed.