Nike Structure 25 vs Nike Structure 26:
Which to Choose
Verdict
These are close cousins, so it comes down to whether ride refinement is worth a replacement to you. If your 25s are worn out or you're new to the line, get the 26 — it keeps everything the Structure is known for and delivers a smoother, slightly springier, less intrusive ride with no weight or stability penalty. If your 25s are still going strong and you're happy with their firm, planted feel, there's no functional gap that forces an upgrade — the mission, weight, drop, and stack are all essentially the same.
Pace
3 of 6
Cushioning
4 of 6
Responsiveness
3 of 6
Stability
5 of 6
Drop
10 mm
Support
Stability
Plate
None
Distances
10KHalfMarathon
Pace
3 of 6
Cushioning
4 of 6
Responsiveness
4 of 6
Stability
5 of 6
Drop
10 mm
Support
Stability
Plate
None
Distances
10KHalfMarathon
At a Glance
Nike Structure 25Nike Structure 26
Who Should Choose Each Shoe
Choose
Nike Structure 25
Choose the Structure 25 if you already own a pair, get along with the firm, grounded Cushlon feel, and don't see a reason to pay to chase a small ride refinement — the fundamentals you rely on for supportive daily mileage are unchanged. It also suits runners who specifically like maximum road feedback and a very planted, no-frills stance, and who aren't bothered by (or actively prefer) a firmer forefoot with the Air Zoom unit underfoot.
Choose
Nike Structure 26
Choose the Structure 26 if you're buying a support trainer fresh, or if the things that mildly annoyed you about the 25 were the plasticky firmness, the abrupt forefoot, or the noticeable arch support — the ReactX foam and blown-rubber forefoot address exactly those, giving smoother transitions and a slightly more responsive ride without giving up any stability. It's the pick for a heel-striking mild overpronator who wants the same dependable guidance in a more modern, better-rolling package.
Head-to-Head
On paper these two are almost the same shoe: both are 10mm-drop stability trainers weighing right around 300g (302g for the 25, 298g for the 26 in a men's US 9), with virtually identical stacks — roughly 36.7mm heel / 24.6mm forefoot on the 25 versus about 36mm heel / 26mm forefoot on the 26. Cushioning rates the same moderate-to-high on both, stability is high on both thanks to a wide base and dual guide rails rather than a rigid medial post, and neither has a plate. The one substantive difference is the foam and forefoot construction. The 25 runs on Nike's Cushlon 3.0 with a forefoot Air Zoom unit — a firm, grounded, road-feedback-heavy ride that never really pops and can feel a touch plasticky, with a midfoot support element some runners notice under the arch. The 26 swaps in full-length ReactX and replaces that Air Zoom unit with softer blown rubber, which nudges responsiveness up a notch (3/6 to 4/6 in our metrics), smooths the roll through the forefoot, and quiets that arch sensation so guidance feels less intrusive. Both peak at the same controlled paces — comfortable in the 5:00–6:00 min/km training zone and going flat if you push much faster than about 4:45 min/km — and both call the half marathon their sweet spot. So this is an evolution, not a reinvention: same weight class, same stability mission, a slightly smoother and marginally springier ride on the 26.
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