Max Cushion Showdown: Invincible Run 3 vs Prime X Strung, Gel-Nimbus 25 and SC Trainer

Introduction

The Nike ZoomX Invincible Run 3 is one of the most talked-about max cushion trainers on the market, so it makes sense to put it up against three similarly weighted, similarly priced rivals: the Adidas Adizero Prime X Strung, the Asics Gel-Nimbus 25, and the New Balance FuelCell SC Trainer. After roughly 50 miles in the Invincible 3, here is how the four stack up, including a full ranking from worst to best.

Nike ZoomX Invincible Run 3: The Daily Workhorse

Purchased at release for around 153 pounds with a small discount, the Invincible Run 3 is still a serious investment, but durability looks promising based on how the previous two versions held up. The ride has softened slightly over the first miles, feeling a touch squashier out of the box, possibly due to the thicker outsole. It also feels a little more stable than the last two versions, with just minor outsole wear showing on the lateral side so far.

The Invincible is essentially a slab of ZoomX foam with nothing else in the midsole, and it does not pretend to be anything more. The outsole offers good grip and a decent amount of rubber coverage, and it is the widest of the four shoes here, though also the heaviest.

Adidas Adizero Prime X Strung: The Max Cushion Enjoyment Champion

The Prime X Strung might be the most enjoyable running shoe of the bunch, delivering impressive compression, propulsion and all-round performance. It costs around 230 pounds in the UK, roughly 60 pounds more than the Invincible 3, and discounts are scarce. The upper, however, is in a different league: it does not sag or stretch over time, stays consistent, is very light and durable, and fits like a glove.

It is around 50 grams lighter than the Invincible 3 in the same size, ridiculously cushioned, and feels oddly more controlled thanks to the energy rods, blades and plate in the midsole. It is even raceable for amateur runners with strong ankles and a neutral foot strike, though a twisty race route is not the right place for it. The Strung version is far more stable than the original Prime X, but it remains a premium-priced, less versatile option; the Invincible is the more conventional daily shoe of the two.

Asics Gel-Nimbus 25: The Controlled Cushion Pick

The Gel-Nimbus 25 takes a more controlled, slightly firmer approach to max cushioning. The compression feels consistent across the midsole and more assured, which should suit a wider range of runners, especially those who find the Invincible’s ZoomX slab too squashy or too compressive for their gait. If you want max cushion without sinking into it too much, this is the pick.

The foam here is the firmest of the four, a firmer take on the FF Blast foam also used in the Novablast 3, with slightly less rebound but more impact protection. One trade-off: the outsole grip on the Nimbus is less impressive than the Invincible’s, although the AHAR Plus rubber should prove more durable over time. It is also the firmest-fitting max cushion option in feel, making it a strong long-run shoe for runners used to conventional trainers.

New Balance FuelCell SC Trainer: The Also-Ran

The SC Trainer was enjoyable at first but has been reaching for far less in recent weeks. The upper fit leaves something to be desired: the lacing needs fiddling with, and the sizing is awkward, with a UK 11 feeling snug and an 11.5 feeling a bit long, requiring a thicker sock to work. Feedback from other runners suggests several recent New Balance uppers have struggled to offer proper lockdown over the midfoot.

The FuelCell cushioning is on par with the Invincible in compression, and the energy arc plate adds some structure, but the whole package feels a touch unrefined, particularly at a retail price of about 210 pounds. It has already been heavily discounted, which tells its own story. Neither this nor the Invincible is a high-paced option; both are about impact protection, and the Invincible simply feels more nuanced in every area.

Overall Ranking and Buying Advice

Ranked from worst to best: the New Balance FuelCell SC Trainer comes in fourth, the Asics Gel-Nimbus 25 third, the Nike ZoomX Invincible Run 3 a close second, and the Adidas Adizero Prime X Strung takes top spot, with nothing beating it for max cushion enjoyment.

Some bonus stats: the Prime X Strung has the highest stack, the lowest weight and the highest price. The SC Trainer has the second-highest stack and second-highest retail price. The Gel-Nimbus 25 has the firmest foam, and the Invincible 3 has the widest base and surface area, along with the highest weight of the four.

If you want the most fun per mile and can stomach the price, go Prime X Strung. If you want a versatile daily trainer at a lower price, the Invincible Run 3 is the sensible pick. If the Invincible feels too squashy for your gait, the Gel-Nimbus 25 gives you controlled max cushion. The SC Trainer is best approached only at a meaningful discount.

Conclusion

All four shoes chase the same goal, protecting your legs over long distances, but they get there in very different ways. Match the ride feel to your gait and your budget, and each of the top three here can earn a spot in the rotation.