ASICS GEL-Kayano 24 vs. ASICS GEL-Kayano 25 review

ASICS GEL-Kayano 24 provides softness, comfort, and a touch of stability to overpronators. ASICS GEL-Kayano 25 has an updated upper and implements new midsole technologies.

The ASICS GEL-Kayano 25 is the updated version of the ASICS GEL-Kayano 24, which is a stability running shoe that was listed as also being suitable for neutral runners.

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The latter changed with the introduction of the ASICS GEL-Kayano 25 The preceding link takes you to Amazon.com, which ASICS now lists as being only for overpronators.

So if you are a neutral runner who used to run in the ASICS GEL-Kayano 24 The preceding link takes you to Amazon.com or in an earlier version, you may want to look into true neutral running shoes such as the ASICS GEL-Nimbus or the ASICS GEL-Cumulus instead of the ASICS GEL-Kayano 25.

The upper of the ASICS GEL-Kayano 25 has changed somewhat compared to that of the ASICS GEL-Kayano 24.

Both the ASICS GEL-Kayano 24 and the ASICS GEL-Kayano 25 come with the ASICS logo on the lateral side that delivers some support and holds the mesh in place.

Both running shoes also come with underlays for additional support around the midfoot.

ASICS lists the ASICS GEL-Kayano 25 as having an internal fit system with no-sew underlays, so it might have more underlays than the ASICS GEL-Kayano 24.

The mesh has also changed a bit in the ASICS GEL-Kayano 25 and has a slightly different structure than that of the ASICS GEL-Kayano 24. However, both are meant to provide structure, lightweight support, a good fit, and to move with your foot.

Both the ASICS GEL-Kayano 24 and the ASICS GEL-Kayano 25 come with a no-sew toecap, so the durability of the running shoes is similar at the front.

At the back, they both have a sturdy external heel counter. The heel counters look a bit different in structure but not in form. They are of similar size, although the one of the ASICS GEL-Kayano 25 goes just a tiny bit higher towards the saddle on the lateral side.

These heel counters are meant to lock your heel in but also provide support and minimize heel rotation so start the pronation control in the upper.

All in all, except for the obvious change in mesh and possible fit inside the running shoe itself, there aren't huge differences in the amount of support the uppers of the ASICS GEL-Kayano 24 and the ASICS GEL-Kayano 25 would deliver to overpronators.

The biggest change can be found in the midsole.

Whereas the ASICS GEL-Kayano 24 comes with two layers of foam that run from heel to toe, the ASICS GEL-Kayano 25 has one layer under the forefoot and two layers from midfoot to heel.

The type of midsole material has also changed in the forefoot of the ASICS GEL-Kayano 25 compared to the ASICS GEL-Kayano 24.

ASICS claims that the foam that is located in the forefoot of the ASICS GEL-Kayano 25 is meant to deliver a good amount of cushioning but also be light and durable.

What is not visible anymore in the forefoot of the ASICS GEL-Kayano 25 are the two GEL pods that are visible on the lateral side of the forefoot of the ASICS GEL-Kayano 24.

Both the ASICS GEL-Kayano 24 and the ASICS GEL-Kayano 25 have clearly visible GEL cushioning in the heel, which is sandwiched between two layers of foam.

The GEL in the heel of the ASICS GEL-Kayano 24 seems to be a bit more than the GEL in the heel of the ASICS GEL-Kayano 25, and the top layer of softer foam in the ASICS GEL-Kayano 24 also seems to be a bit thicker, so the ASICS GEL-Kayano 24 is likely to deliver somewhat more heel cushioning than the ASICS GEL-Kayano 25.

This is in line with what lab tests have found, that is, the heel of the ASICS GEL-Kayano 25 could feel firm to some male runners. Female runners get a moderate amount of heel cushioning, but this is due to the fact that they get 3 mm of extra height under the heel to take stress off their Achilles tendon.

The latter is also the case in the female version of the ASICS GEL-Kayano 24.

The ASICS GEL-Kayano 25 has been said to have a soft forefoot, which might turn out to be about the same for the ASICS GEL-Kayano 24, which has a soft layer of foam, GEL cushioning, and a responsive layer of foam in the forefoot.

The ASICS GEL-Kayano is known to deliver a slightly above average amount of heel cushioning to men, and women tend to get a bit more than men, but overall, the ride you get from the ASICS GEL-Kayano would feel soft, because the ASICS GEL-Kayano is meant to be a premium running shoe.

Both the ASICS GEL-Kayano 24 and the ASICS GEL-Kayano 25 come with a support system on the medial side of the midsole to help stop the feet of overpronators from rolling too far inward.

The support system does not go all the way to the top, because there is a layer of foam right under the heel that prevents this.

In addition, while the specifications list the two running shoes as using the same support system, the same text has not been printed on the medial side of the midsoles, that is, the ASICS GEL-Kayano 24 uses Dynamic DuoMax, while DuoMax has been printed on the ASICS GEL-Kayano 25. This could be a printing mistake. DuoMax is used by running shoes like the ASICS GT-1000.

Because the ASICS GEL-Kayano 25 is listed as a running shoe for overpronators and not for overpronators plus neutral runners like the ASICS GEL-Kayano 24 is or was, one can assume that the ASICS GEL-Kayano 25 delivers somewhat more stability and support than the ASICS GEL-Kayano 24.

Both the ASICS GEL-Kayano 25 and the ASICS GEL-Kayano 24 come with a midfoot shank that connects the lateral to the medial side of the midsole and delivers midfoot integrity and support. The midfoot shanks differ a bit in the way they look but have the same function.

The outsoles of the two running shoes also differ somewhat in the way flex grooves run.

Both come with large rubber compartments and have three flex grooves in the forefoot with one horizontal flex groove that is supposed to help with gait efficiency, but the horizontal flex grooves are interrupted by rubber under the ASICS GEL-Kayano 25, while they run from side to side under the ASICS GEL-Kayano 24.

Therefore, the ASICS GEL-Kayano 24 is expected to be somewhat more flexible than the ASICS GEL-Kayano 25, which lab tests have found to be stiff for both men and women.

The women's version of the ASICS GEL-Kayano 25 weighs approximately 9.8 oz (278 grams), and the ASICS GEL-Kayano 24 for women weighs 9.3 oz (264 grams).

The men's version of the the ASICS GEL-Kayano 25 weighs about 11.9 oz (337 grams), and the ASICS GEL-Kayano 24 for men weighs approximately 11.3 oz (320 grams).

The ASICS GEL-Kayano 25 has gone through enough changes in its midsole to give runners a different running experience compared to the ASICS GEL-Kayano 24.

Therefore, if you are currently running or have run in a previous version of the ASICS GEL-Kayano and are looking into the ASICS GEL-Kayano 25, it is advisable to try on the running shoe to see how it feels on your foot and whether you like it or not.

Because of the change by ASICS in listing the ASICS GEL-Kayano 25 as being only for overpronators, you may want to look into the ASICS GEL-Kayano 24 first if you are a neutral runner or look into a true neutral running shoe such as the ASICS GEL-Nimbus or the ASICS GEL-Cumulus.

If you are a mild to moderate overpronator, you can look into the ASICS GEL-Kayano 25.

Note: The weight of a running shoe depends on the size of the running shoe, so any weights mentioned in this review may differ from the weight of the running shoe you choose to wear. Running shoes of the same size were compared for this review.

The two links above will take you to Amazon.com where you can read more about the running shoes.


This review falls under: ASICS

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