Nike sizing is model-by-model: Air Force 1 often runs big, Cortez small, Blazer narrow, while Dunk and many Air Max models sit nearer true to size. Never copy one Nike half-size tip across the whole brand.
Start with the quick scan below, then open the model guide. Tools: converter · Nike lifestyle · Does Nike run small?. Method: methodology.
Which Nike models run small? Do not copy AF1 half-down onto every Nike. Dunk and Air Max 90 are often nearer TTS; Blazer can feel narrow. Nike lifestyle · Jordan / Dunk / AF1.
Quick scan: runs small — Cortez; runs big — Air Force 1 '07; narrow — Blazer Mid '77; true to size — Air Max 1, Air Max 90, Dunk Low, Pegasus 41, Vomero 5.
Use the converter (model → model) or open a full guide.
Looking for clothing? Cut/line guides are under Clothes. · Women’s sizing for verified gender offsets.