Running Shoes
Puma ForeverRun Nitro 2 Review: A Softer, Smoother Take on Stability
Puma's stability trainer gets a rebuilt upper and a one-piece cold-molded Nitro midsole for a more cushioned, more stable ride.
Introduction
The Puma ForeverRun Nitro 2 is the brand’s stability shoe, built for runners who want a stable ride without giving up comfort. This second version makes meaningful changes in exactly the places that matter: a completely new upper and a reworked midsole construction that smooths out the ride. Here is how it shapes up.
Who This Shoe Is For
This is the shoe Puma points you to when you come looking for support. It is a stability trainer, but one that leans toward light stability rather than aggressive motion control. The TPU heel clip at the back keeps the rearfoot steady, while the rest of the shoe is built around comfort.
Runners who want a bit of extra guidance through their gait but still prioritize a soft, pleasant daily ride are the clear target here.

Upper and Fit
The upper is fully new, made from a circular knit material that is very soft and tends to disappear on the foot once laced up. The knit collar is heavily cushioned and does a good job of locking down the heel and ankle.
Puma has also swapped the previous power tape for power print, an evolved approach that supports the upper and keeps the foot locked down without adding bulk. Combined with the heel clip, the support is concentrated at the rearfoot, keeping the midfoot feel relatively light.
Midsole and Ride Feel
The midsole uses Puma’s Nitro foam, but the construction has changed. The first version glued together two densities of Nitro, a softer one and a firmer one. In the Nitro 2, they are cold molded as a single piece.

The result is a softer blue core with a firm white rim that wraps around the foot. Because the softer foam now runs all the way to the ground, the ride is smoother, more cushioned, and more responsive than before. The firmer rim was also made wider through the medial side to add a little extra stability through the gait cycle.
Outsole and Grip
The outsole keeps PumaGrip rubber, which the brand positions as its premium traction compound. It carried over unchanged in spirit, and it remains one of the more confident-feeling rubbers in the category.

Specs at a Glance
The stack height is now 38mm in the heel and 28mm in the forefoot, a 10mm drop. That is up 2mm from the previous version, added purely for extra cushioning. Weight comes in around 290g, so the shoe did gain a little heft, a trade-off Puma accepted in exchange for a more stable and more cushioned ride.
Price is set at $160, with a release date of February 2025.
Things to Consider Before Buying
The added weight is the main trade-off. If you are hunting for the lightest shoe possible, this is not it. But if your priority is a stable, comfortable daily trainer, the extra grams buy you a noticeably better ride. Also note that the support is light rather than structural, so runners needing heavy-duty motion control should look elsewhere.
Buying Advice
At $160, the ForeverRun Nitro 2 sits in line with other premium stability trainers. The improvements here are practical rather than flashy: a smoother one-piece midsole, a plusher upper, and slightly more stack.

If you are a stability runner who wants that extra bit of support wrapped in a genuinely comfortable ride, this version is a clear step forward from the original.
Conclusion
The Puma ForeverRun Nitro 2 refines what a stability daily trainer can be. The cold-molded Nitro midsole delivers a smoother, more cushioned and more responsive ride, the new circular knit upper adds a premium comfort level, and the light stability elements stay in the background without getting in the way. For supported daily miles, it is an easy recommendation.
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