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The Kayano series are the quintessential stability running shoes. In fact, by many, they are considered thebest stability running shoes for anyone that overpronates.
Quick overview of what overpronate even means. It’s a technical way of saying that when your foot strikes the ground you roll inward. Runners that typically overpronate will have flatter feet and will push off of their big toe more than anything.
So if the goal is to help with overpronation, what could ASICS possibly do to the 25s that they haven’t managed to implement in the 24 previous years of making the Kayanos? To be frank, not much.
What’s new with the Kayano 25
Ready for a short list? Here it goes:
Upper — The 25s now have a ASICS’ Jacquard Mesh upper. It’s flexible, breathable, and comfy, but honestly not much of an upgrade over the upper seen on the 24s.
Jacquard Upper on the 25s
Foam Midsole — The 25s now have a combination of FlyteFoam Propel and FlyteFoam Lyte supposedly to help with both impact absorption and spring. Verdict: it really doesn’t feel much different than the foam on the 24s. It still tends toward being more cushiony than springy and it still comfortable overall.
Updated midsole on the Kayano 25s
Toe Box — You now have slightly more room in the toe box on the 25s. This is a very minor change that we can’t imagine many runners were asking for. Nonetheless, if you prefer more room in the front of your shoes so your toes can spread out, the 25s are indeed better here than the 24s, marginally. For the record, this is a change that we’re seeing with a lot of running. No one likes the feeling of their toes bunching up on them while they run. We never felt this way with the 24s, but it makes sense that ASICS follows the larger trend in the running shoe world.
Guidance — We’ve read that ASICS possibly upgraded the guidance system on the shoes to better help correct overpronation. Visually, there is a difference when you look at the bottom of the shoe, but practically we can’t discern anything special about the change.
Slightly heaver this time
Weight — The 25s are actually now about 0.5 ounces heavier than the 24s, which does make a difference for distance running. We suspected that they were slightly heavier, but after checking for ourselves, we can confirm that the 25s are indeed the heavier shoe This is probably due to the updated cushioning system, but we don’t know for certain what.
That’s really it. You have a few very minor changes year-over-year with the Kayanos.
Are they worth upgrading to if you already have the 24s? Nope, unless your 24s are worn out and you can’t find anymore in your size. You can check Amazon for current pricing and to see if the 24s are still in stock.
Are they good stability running shoes? For sure. We do like them, but we honestly didn’t find anything compelling about them, relatively speaking.
So you’ve read about the 25s now, let’s briefly discuss what you can expect with the 24s.
Kayano 24s are more affordable
Naturally, the 24s are now much more affordable than the 25s. They’re a year older, ASICS isn’t making them anymore, and most people are whole invested in getting the latest and greatest. You can check here to see if Amazon still has the 24s.
24s feel more streamlined
This is purely subjective, but the 24s just feel more minimalist than the 25s. This could be that they’re broken in and the 25s are newer, but the 24s just feel like there’s less shoe in your way. Even the upper feels lighter.
Kayano 24 feel more streamlined
All things considered
I don’t know how someone could spend $160 on the 25s without first checking to see if the 24s are available. We’ve seen the 24s as low as $100, which if you’re counting is a $60 less than the 25s (or a 38% savings). There truly just isn’t that much new with the 25s.
I get that ASICS needed to create a new model for the 25th anniversary of the shoe, but I just wasn’t thrilled with the update. Still a great shoe and a heck of a lot of people will get them, but they’re not a must-have if you already own the 24s or if you care about your budget.