The Adidas Adizero Boston 13 is a neutral road running shoe and the Nike Zoom Fly 6 is a road running shoe. The Adizero Boston 13 costs about $52 less (from $128) and has a lower heel-to-toe drop (6 mm vs 8 mm).
Specs side by side
| Spec | Adizero Boston 13 | Zoom Fly 6 |
|---|---|---|
| Price | $128–$160 | $180–$190 |
| Rating | 4.6 / 5 (1,097 reviews) | 4.7 / 5 (314 reviews) |
| Weight | 9.2 oz | 9.3 oz |
| Heel-to-toe drop | 6 mm | 8 mm |
| Heel stack height | 36 mm | — |
| Cushioning | Firm / responsive | — |
| Support | Neutral | — |
| Surface | Road, Track | Road |
| Available for | Men & Women | Men & Women |
Specs and prices from Adidas and Nike, checked 2026-10-11. Weight is usually for a men's size 9–10.
Which should you get?
Get the Adizero Boston 13 if…
- you want to spend less
- you land on your midfoot or want a lower drop
Get the Zoom Fly 6 if…
- you land on your heel and like a higher drop
More comparisons
- Adidas Adizero Boston 13 vs Adidas Adizero Boston 12
- Adidas Adizero Boston 13 vs Saucony Endorphin Speed 5
- Adidas Adizero Boston 13 vs Hoka Mach 7
- Adidas Adizero Boston 13 vs Adidas adizero EVO SL
- Nike Zoom Fly 6 vs Saucony Endorphin Speed 5
- Nike Zoom Fly 6 vs Hoka Mach 7
- Nike Zoom Fly 6 vs Adidas adizero EVO SL
- Nike Zoom Fly 6 vs ASICS MAGIC SPEED 5