The Altra Olympus 275 HiLo and New Balance Fresh Foam X Hierro v9 are both neutral trail running shoes with maximum cushioning. The Olympus 275 HiLo is 0.4 oz lighter (10.5 oz vs 10.9 oz). The Fresh Foam X Hierro v9 costs about $40 less (from $159.99).
Specs side by side
| Spec | Olympus 275 HiLo | Fresh Foam X Hierro v9 |
|---|---|---|
| Price | $200 | $159.99 |
| Rating | 3.9 / 5 (21 reviews) | 4.1 / 5 (903 reviews) |
| Weight | 10.5 oz | 10.9 oz |
| Heel-to-toe drop | 0 mm | 0–4 mm |
| Heel stack height | 33 mm | — |
| Cushioning | Max | Max |
| Support | Neutral | Neutral |
| Surface | Trail | Trail |
| Available for | Men & Women | Men & Women |
Specs and prices from Altra and New Balance, checked 2026-10-11. Weight is usually for a men's size 9–10.
Which should you get?
Get the Olympus 275 HiLo if…
- you want the lighter shoe
Get the Fresh Foam X Hierro v9 if…
- you want to spend less
- you want the more widely reviewed shoe
More comparisons
- Altra Olympus 275 HiLo vs Altra Mont Blanc Carbon
- Altra Olympus 275 HiLo vs Altra Timp 5 BOA
- Altra Olympus 275 HiLo vs Altra Olympus 7
- Altra Olympus 275 HiLo vs Altra Mont Blanc Speed
- New Balance Fresh Foam X Hierro v9 vs Altra Mont Blanc Carbon
- New Balance Fresh Foam X Hierro v9 vs Altra Olympus 7
- New Balance Fresh Foam X Hierro v9 vs Altra Timp 5 GTX
- New Balance Fresh Foam X Hierro v9 vs Altra Lone Peak 9