The Nike ACG Ultrafly Trail and On Cloudflow 5 are both neutral road running shoes with firm, responsive cushioning. The Cloudflow 5 costs about $80 less (from $180).
Specs side by side
| Spec | ACG Ultrafly Trail | Cloudflow 5 |
|---|---|---|
| Price | $260 | $180 |
| Rating | 4.6 / 5 (34 reviews) | — |
| Weight | 10.1 oz | 9.8 oz |
| Heel-to-toe drop | 8.5 mm | 8 mm |
| Cushioning | Firm / responsive | Firm / responsive |
| Support | Neutral | Neutral |
| Surface | Road, Trail | Road |
| Available for | Men & Women | Men & Women |
Specs and prices from Nike and On, checked 2026-10-11. Weight is usually for a men's size 9–10.
Which should you get?
Get the ACG Ultrafly Trail if…
- it fits you better or you like its colors
Get the Cloudflow 5 if…
- you want to spend less
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