Nike reps don't always match retail sizing. Enter your true size and model below to get the right size to order.
| Model | Sizing Advice | Factory Note | Fit Width |
|---|---|---|---|
| Dunk Low | True to Size | LJR & PK God both TTS | Normal |
| Air Force 1 Low | Size Down 0.5 | All batches run large | Wide |
| Vomero 5 | True to Size | LJR runs accurate | Normal |
| Air Max 90 | True to Size | Snug at first, breaks in | Normal |
| Air Max 95 | True to Size | Standard fit | Normal |
| Air Max 97 | Size Down 0.5 | Especially PK God batch | Normal–Wide |
| Air Jordan 1 | True to Size | LJR matches retail | Normal |
| Air Jordan 4 | True to Size | Consistent across batches | Normal |
| SB Dunk Low | Size Up 0.5 | Narrow toe box | Narrow |
| Nike Cortez | True to Size | Standard fit | Normal |
| Nike Blazer Low | Size Down 0.5 | Runs slightly long | Normal |
| Nike P-6000 | True to Size | Chunky fit, comfortable | Wide |
Nike's retail sizing is already inconsistent across models — AF1s run large, SB Dunks run narrow, Dunks are TTS. Rep factories reproduce the retail lasts (the molds that determine shoe shape), which means they reproduce the sizing quirks too. Knowing this before you order saves you the frustration of getting a pair that doesn't fit.
The most common mistake first-time rep buyers make is assuming all Nike reps size the same way. They don't. A buyer who knows to size down half on AF1s but orders TTS on AM97s (which also run large) is going to have a problem. The model-specific guidance in this tool accounts for both the retail sizing quirk and any additional rep-specific deviation.
Factory variation matters too. LJR's sizing tends to be the most consistent with the retail last — their mold work is precise. PK God's sizing is generally accurate but occasionally runs slightly larger on specific models. Budget batches can vary unpredictably, which is one more reason to invest in a quality batch if fit accuracy matters to you.
If you're between sizes on any Nike model, the general rule is to go with your larger size on models that run TTS, and your smaller size on models marked "size down." The half-size adjustments in this tool represent the community consensus from thousands of buyer reports.
Sizing varies significantly across Nike rep silhouettes. Air Force 1 runs half a size large in all rep batches — same as retail. Dunk Low runs true to size. Jordan 4 typically needs half a size up. Air Max 97 runs half large. Never assume one Nike sizing rule applies across all silhouettes.
Use this tool before placing any order, then double-check against the sizing notes on the individual model page in the model directory. The sizing guide covers the principles behind Nike rep sizing. For batch-specific sizing variations, the batch index notes any known batch-level deviations from the standard per-silhouette sizing pattern.