Nike Rep Sizing Guide

Rep factories use their own lasts (the molds that determine shoe shape). While most attempt to match retail sizing, the results vary by model and factory. Some batches run true to size; others run half a size large or small. The key rule: always check per-model before ordering.

Stand on a piece of paper and trace your foot outline. Measure the longest point (heel to longest toe) in cm. Use a US size chart to convert. Always measure both feet and use the larger measurement. Best done in the afternoon when feet are slightly larger.

Nike Dunk Low reps run true to size on all major batches (LJR, PK God, OG). Order your normal US size. Wide-footed buyers may want to go half a size up. The toe box on larger sizes (US11+) can be slightly wide on LJR but is otherwise accurate.

All AF1 rep batches run approximately half a size large. This mirrors retail AF1 sizing. Order half a size down from your true size. If you normally wear US10, order US9.5 in AF1 reps. The heel counter is stiff at first and breaks in after 1–2 weeks.

Nike Vomero 5 reps (LJR batch) run true to size. The fit is comfortable and doesn't require a break-in period. The cage construction keeps the shoe's shape firmly, so the fit feels consistent throughout.

SB Dunks have a narrower toe box than standard Dunk Lows. Most rep batches maintain this narrow profile. Size up half a size for SB Dunks to avoid toe compression, especially if you have wide feet.