Max-Stack Showdown: Puma MagMax Nitro vs Brooks Glycerin Max vs Hoka Skyward X

Introduction

Three first-generation super-max trainers now sit at the top of the cushioning market, and together they represent a genuinely new category. Traditional max-cushioned daily trainers typically cap out around 38 to 42mm of heel stack. This new crop pushes well past that, going above 42mm in the heel with no real concern about weight. The priority is comfort, protection, and fun.

The three contenders here are the Puma MagMax Nitro, the Brooks Glycerin Max, and the Hoka Skyward X. All three are in their first generation, all three blend comfort, speed, and fun over long distances, and the differences between them are small enough that many shoppers genuinely struggle to pick between them. This comparison breaks down where each one wins.

The Super-Max Category in Context

Think of the classic cushioned daily trainers, shoes like the Nike Vomero, the New Balance 1080, or the Brooks Ghost Max and Glycerin. Those typically top out around 38 to 42mm in the heel. The super-max category throws that ceiling away and leans into extreme stack height instead.

That matters because these are not lightweight performance shoes. They are heavy, tall, and unapologetically focused on comfort and protection. Choosing between them is less about specs and more about which personality fits your running.

Puma MagMax Nitro: The Stable Workhorse

The MagMax Nitro is the widest and most substantial of the three, and it is the only one of the trio that uses a single foam type: 100% Nitro foam throughout. It is also non-plated, and it comes in at $180.

The fit is more comfortable and forgiving than other Puma shoes, having been widened a touch compared to models like the Deviate Nitro 3. Step-in feel is the surprise, though: despite the max stack, this is not a squishy shoe. It is firm, structured, and the most stable option of the three, with aggressively contoured foam up the sides that cradles the foot almost like a hiking boot. If support is your priority, this is the pick.

On the run, it is the smoothest of the batch and an elevated daily workhorse in the spirit of the Vomero. It gives back what you put in, and it genuinely rips on strides, feeling natural shifting gears at faster paces, which is impressive for a non-plated 47mm stack shoe. It is the lightest of the three at about 325g in a men’s size 10.5, undercutting the Superblast by $20 while still delivering bounce the Superblast never quite offered. If you want a shoe for heavy mileage, long runs, or 4-hour-plus time on feet, this is the one.

Brooks Glycerin Max: The Soft Bounce

The Glycerin Max is the comfort king of this comparison, and it is priced at $200. It is non-plated, but unlike the MagMax it is not flexible at all. It uses two foams, which Brooks calls DNA Tuned: technically the same foam tuned differently, with a softer version in the heel for comfort and a firmer version in the forefoot for speed and bounce.

The upper is one of the most comfortable here, well padded, with the highest-volume toe box of the three. Width-wise, Brooks is the widest, Puma the middle, and the Skyward X the narrowest toe box. The platform is more stable and planted than the Skyward X thanks to the foam construction at the rear.

On foot it is the softest shoe of the three, full stop. If you want the most comfortable shoe on the market, this is it. It also handles pace better than expected, feeling natural and surprisingly quick on easy cruising, and it is the only one of the three you would happily wear for walking all day. In a genuinely surprising twist, it is arguably the best-looking shoe of the bunch in this colorway.

Hoka Skyward X: The Fun Bounce

The Skyward X is the most expensive at $225 and the most unusual construction here. It is the only plated shoe of the trio, with a full-length carbon fiber plate sandwiched between two completely different foams: a top layer of race-grade PEBA foam and a bottom layer of supercritical EVA training foam. That recipe makes it the stiffest and the bounciest.

The ride is the most polarizing. It has an aggressive curved rocker with a pronounced heel bevel, and it feels like nothing else on the market. It rewards power: put pace or force into it and it opens up, but run it slow and tired and it can feel awkward and cumbersome. If you want a shoe purely for relaxed recovery miles, this is not it.

Fit is more snug than the MagMax, particularly in the toe box, so higher-volume feet may prefer the Puma or Brooks. Where it wins is fun: it is the most exciting shoe here, it will not bottom out thanks to the plate, and big runners get the most support and protection from it. If fun is your number one criterion in a max-stack shoe, this is still the one.

Overall Buying Advice

A quick cheat sheet covers most situations. Need stability or a wide, forgiving fit? Glycerin Max for width and comfort, MagMax Nitro for support. Want bounce for big runners and worry about bottoming out? Skyward X. Pure comfort and recovery? Glycerin Max. Long-run time on feet and value? MagMax Nitro, the lightest and most workmanlike of the three. Fun above all? Skyward X. Wet weather favors the MagMax Nitro or Glycerin Max, depending on whether you value versatility or comfort more.

Remember that all of these differences are marginal, in the three to seven percent range. They are similar shoes in the same class with similar stacks and the same core purpose, so choose based on the single trait you care most about.

Conclusion

The super-max category is officially here, and all three of these shoes justify the hype in different ways. The Puma MagMax Nitro is the stable, smooth, value-focused workhorse. The Brooks Glycerin Max is the softest and most comfortable, with a surprisingly capable ride. The Hoka Skyward X is the fun, plated bouncer for runners who want their shoes to do the work. Pick the trait that matters most to you, and you will not go wrong with any of them.