Short answer: Length is often TTS on lifestyle Adidas, but Samba runs narrow, Gazelle often runs slightly long (half down for average feet), and Yeezy 350 V2 / Slides commonly need a size up. Ultraboost is a different sock fit.
| Model | Verdict | Width | Advice |
|---|---|---|---|
| Adidas Samba OG | Runs Narrow Verified | Narrow low-volume last — common complaint | True to size length; half up if wide feet |
| Adidas Gazelle | Runs Big Verified | Narrow-leaning suede forefoot — wide feet should stay TTS, not size down | Size down half a size (TTS if wide feet) |
| Adidas Ultraboost 1.0 | True to Size Verified | Primeknit stretches; TPU midfoot cage can still pinch wide feet | True to size; half up if wide feet or thick socks |
| Adidas Campus 00s | True to Size Verified | Padded chunky silhouette; suede needs break-in | True to size; narrow feet with heel slip can half down |
| Yeezy Boost 350 V2 | Runs Small Verified | Tapered Primeknit toebox — limited stretch; thick socks often force full size up | Size up half a size (full size if wide feet or thick socks) |
| Yeezy Slides | Runs Small Partial | Narrow midfoot band; foam molds after break-in | Default +1 whole size; narrow barefoot can try TTS; wide/socks +1 to +2 |
| Adidas Handball Spezial | True to Size Partial | Roomier than Samba among terrace trio; pliable suede stretches | TTS for average/wide; half down if narrow (suede stretches) |
| Adidas Stan Smith | True to Size Verified | Medium-narrow tennis last — snugger than Superstar forefoot | True to size; half up if wide |
| Adidas Superstar | Runs Big Partial | Shell toe adds dead length; forefoot can still feel snug | Half down if narrow/average (shell-toe length); TTS if wide |
| Adidas Gazelle Indoor | Runs Big Verified | Indoor gum sole / suede — still narrow-leaning; wide stay TTS | Size down half a size (TTS if wide feet) — same length rule as Gazelle |
| Adidas Forum Low | True to Size Partial | Basketball last — snugger above the ball than many lifestyle Adidas; leather softens | True to size; half up if wide or snug midfoot |