The Adidas Adizero SL 2 is a road running shoe and the On Cloudrunner 2 is a stability road running shoe. The Adizero SL 2 costs about $60 less (from $65) and is rated higher by buyers (4.7 vs 3.8 out of 5). The Cloudrunner 2 is 0.3 oz lighter (8.1 oz vs 8.4 oz).
Specs side by side
| Spec | Adizero SL 2 | Cloudrunner 2 |
|---|---|---|
| Price | $65 | $125 |
| Rating | 4.7 / 5 (461 reviews) | 3.8 / 5 (263 reviews) |
| Weight | 8.4 oz | 8.1 oz |
| Heel-to-toe drop | 9 mm | 10 mm |
| Heel stack height | 36 mm | — |
| Cushioning | — | Balanced |
| Support | — | Stability |
| Surface | Road | Road |
| Available for | Men | Women |
Specs and prices from Adidas and On, checked 2026-10-11. Weight is usually for a men's size 9–10.
Which should you get?
Get the Adizero SL 2 if…
- you want to spend less
Get the Cloudrunner 2 if…
- you want the lighter shoe
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