Both are Nike models, but lasts differ. Blazer Mid '77 is labeled Runs Narrow (True to size length; half up if wide). Dunk Low is True to Size (True to size; half up if wide).
Blazer Mid ’77 usually matches Nike length at true size, but RunRepeat lab width and wearer notes call out a narrower structured fit than chunky lifestyle Nikes. Average feet stay TTS; wide feet should half up rather than copying an AF1 size-down.
Dunk Low is a common TTS Nike reference — closer and more tapered than Air Force 1. Average feet take their usual size; wide feet may prefer half up. Do not copy an AF1 size-down into Dunks without checking.
Use the table below as a starting point from fit offsets — then confirm with try-on or returns. Width can matter more than length between these two.
| Blazer Mid '77 | Dunk Low | |
|---|---|---|
| Verdict | Runs Narrow | True to Size |
| Advice | True to size length; half up if wide | True to size; half up if wide |
| Width | Structured midfoot/toebox narrower than AF1 — lab width below average | More tapered than AF1 — can feel snug in toebox |
| Break-in | Leather softens; mid collar break-in | Minimal |
| Fit offset | +0 | +0 |
| Confidence | medium | medium |
If the left model fits at the listed size, start here in the right model (chart + fit offsets).
| If Blazer Mid '77 fits | Try Dunk Low | Note |
|---|---|---|
| US 7 | US 7 | offset +0 |
| US 7.5 | US 7.5 | offset +0 |
| US 8 | US 8 | offset +0 |
| US 8.5 | US 8.5 | offset +0 |
| US 9 | US 9 | offset +0 |
| US 9.5 | US 9.5 | offset +0 |
| US 10 | US 10 | offset +0 |
| US 10.5 | US 10.5 | offset +0 |
| US 11 | US 11 | offset +0 |
| US 12 | US 12 | offset +0 |
Full Blazer Mid '77 guide · Full Dunk Low guide · Reverse compare · Open in converter