Brooks Launch 12 vs Salomon Aero Blaze 4
Two shoes compared on measured geometry. Each cell carries a provenance badge; open a shoe for sources.
- Brooks Launch 1235/27 mm · toe rocker 35 % · heel bevel 6 %
- Salomon Aero Blaze 436/28 mm · toe rocker 39 %
Which suits you
| If you want | Pick | Because |
|---|---|---|
| A smoother roll at toe-off | Salomon Aero Blaze 4 | 35.1 vs 38.5 % toe rocker |
| More cushioning under the heel | About the same | 35 vs 36 mm heel stack |
| More under the forefoot | About the same | 27 vs 28 mm forefoot stack |
| A lower drop | About the same | 8 vs 8 mm drop |
From the values below, with differences inside measurement noise shown as about the same. This describes the shoes, not what is right for your feet; comfort in the first few runs decides.
| Metric | Brooks Launch 12 Daily trainer · Road | Salomon Aero Blaze 4 Daily trainer · Road |
|---|---|---|
| Heel-to-toe drop | 8 mmDerived | 8 mmStated |
| Heel stack | 35 mmStated | 36 mmStated |
| Forefoot stack | 27 mmStated | 28 mmStated |
| Weight | 247 gStated | 227 gStated |
| Toe rocker | 35 %est. | 39 %est. |
| Rocker radius | 43 %est. | 59 %est. |
| Rocker rise angle | 27 degest. | 25 degest. |
| Rocker angle at toe | 54 degest. | 60 degest. |
| Toe tip over ground | 41 mmest. | 38 mmest. |
| Visible rocker lift onset | 74.9 %est. | 72.3 %est. |
| Toe spring (relative) | 18.1 %est. | 18.1 %est. |
| Heel bevel length | 5.8 %est. | — |
| Heel bevel height | 15 mmest. | — |
| Midsole width (forefoot) | 111 mmMeasured | — |
| Midsole width (heel) | 87.4 mmMeasured | — |
| Toe box shape | 73 %est. | — |
| Interior forefoot width | 94 mmMeasured | — |
| Toebox width | 70.1 mmMeasured | — |
| Longitudinal stiffness | 24Derived | — |
| Midsole firmness | 65Derived | — |
| Plate | No plate | No plate |
| Primary foam | DNA Flash (DNA Flash v2 forefoot) | optiFOAM2 (supercritical TPU), Reverse Camber rocker |
| List price | $120 | $140 |
Key differences
- Heel-to-toe drop is about the same: 8 mm for Brooks Launch 12, 8 mm for Salomon Aero Blaze 4.
- Brooks Launch 12's heel stack is 35 mm, 1 mm thinner than Salomon Aero Blaze 4's 36 mm.
- Brooks Launch 12's forefoot stack is 27 mm, 1 mm thinner than Salomon Aero Blaze 4's 28 mm.
- Brooks Launch 12's weight is 247 g, 20 g heavier than Salomon Aero Blaze 4's 227 g.
- Brooks Launch 12's toe rocker is 35 % of length, 3 % of length shorter than Salomon Aero Blaze 4's 39 % of length.
Read more about both shoes
We measure the shape. For how they feel over many miles, and for lab tests of cushioning, grip and fit:
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Brooks Launch 12 details · Salomon Aero Blaze 4 details · Add more shoes