Adidas Adizero Adios 8 vs Adizero Adios 9
Updated September 10, 2026. Specs are men's US 9.
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THE SHORT ANSWER
Whichever your size still exists in. The Adizero Adios 8 is discontinued at retail, so remaining pairs sell against a thinning size run, while the Adizero Adios 9 has a full one. The Adizero Adios 8 also lists $10 lower.
- Adidas Adizero Adios 8Sizes running outMen's at Amazon
- Adidas Adizero Adios 9Sizes running outMen's at AmazonWomen's
Availability last checked Sep 10, 2026. Prices and stock change without notice.
Every spec, side by side
| Spec | Adizero Adios 8 | Adizero Adios 9 |
|---|---|---|
| FIT AND WEIGHT | ||
| Weight | 7.2 oz | 6.2 oz |
| The lightest Adios ever, 14% off an already light shoe. | ||
| Widths | D | D |
| Upper | Re-engineered micro-fit mesh | One-way stretch mesh with a Lightlock band and Slinglaunch heel wrap |
| Adios Pro 4 tech, with no conventional heel counter. Narrow is the first word reviewers reach for. | ||
| CUSHIONING GEOMETRY | ||
| Heel stack | 28 mm | 28 mm |
| The quoted heel looks unchanged; RunRepeat's calipers read a real 3 mm cut (28.0 to 25.0), the biggest brand-vs-lab gap in the line. | ||
| Forefoot stack | 20 mm | 21 mm |
| Drop | 8 mm | 7 mm |
| MATERIALS | ||
| Midsole | Lightstrike 2.0 EVA with a Lightstrike Pro forefoot | Full-length Lightstrike Pro (single slab) |
| The first single-slab superfoam Adios: much softer and bouncier, with no firm frame around it. | ||
| Plate | Energy Torsion Rod 2.0 (three-pronged nylon) | Thin nylon stiffener (Torsion rods removed) |
| VALUE | ||
| List price at launch | $130 | $140 |
| OTHER CHANGES | ||
| Plate | Energy Torsion Rod 2.0 | Thin nylon stiffener |
| The deletion that defines the update. RunRepeat's lab measured the heel at 72.5 mm wide with no conventional counter and called it 'wildly unstable for anyone loading the rearfoot'. | ||
Weighing whether to switch at all, rather than which of these two to buy? What replaced the Adidas Adizero Adios 8 covers the verdict on the update, what loyalists made of it, and the closest alternatives from other brands.
Buy the Adizero Adios 8
Sizes running outDiscontinued at retail. Amazon carries what remains, so treat an in-stock size as a closing window, and expect prices to swing.
Women's stock is gone.
Availability last checked Sep 10, 2026.
Buy the Adizero Adios 9
Sizes running outDiscontinued at retail. Amazon carries what remains, so treat an in-stock size as a closing window, and expect prices to swing.
Availability last checked Sep 10, 2026.
Questions runners ask
- Which is lighter, the Adidas Adizero Adios 8 or the Adizero Adios 9?
- The Adizero Adios 9, by 1 oz in a men's US 9 (6.2 oz vs 7.2 oz).
- Did the price change between the Adidas Adizero Adios 8 and the Adizero Adios 9?
- Yes. List price went up $10, from $130 to $140. Street prices differ: the older shoe usually sells under list once its successor ships.
- Do the Adidas Adizero Adios 8 and Adizero Adios 9 come in the same widths?
- Yes. Both run in D for men's sizes, so a width that fit in the Adizero Adios 8 carries over to the Adizero Adios 9.
- How do the stack heights compare?
- 28 mm heel and 20 mm forefoot on the Adidas Adizero Adios 8, against 28 mm and 21 mm on the Adizero Adios 9. That is 0 mm less under the heel and 1 mm more under the forefoot. See the stack height note in the table above: the published figures changed convention mid-lineage.
- Is the Adizero Adios 9 still the newest Adizero Adios?
- Yes. The Adizero Adios 9 is the current Adidas Adizero Adios, listing at $140 at launch.