Brand Comparison · 2026

    Stone IslandvsAmi Paris, Size Comparison

    Stone Island tends to run smaller than Ami Paris. If you wear a Medium at Ami Paris, you may need a Large at Stone Island. For a measurement-based recommendation, use the fit checker.

    Quick Answer

    Stone Island vs Ami Paris sizing, quick answer

    Stone Island runs about one size smaller than Ami Paris. If you wear a Medium at Ami Paris, you'll likely need a Large at Stone Island. For an exact recommendation, build a free fit profile.

    • Stone Island: runs small
    • Ami Paris: runs large
    • If between sizes: size up at the brand that runs smaller, or use the fit checker below for a personalised recommendation.

    Brand guide

    Compare how Stone Island and Ami Paris usually fit, where cuts feel slimmer or roomier, and which categories are most predictable.

    GENERAL BRAND GUIDANCE

    This is a general brand-level sizing summary, not an exact product recommendation. For your specific size, paste a product link into the fit checker.

    The Verdict

    Stone Island sizing compared to Ami Paris: Stone Island runs small while Ami Paris runs large. Here is how the sizes translate.

    Stone Island tends to run smaller than Ami Paris. If you wear a Medium at Ami Paris, you may need a Large at Stone Island. For a measurement-based recommendation, use the fit checker.

    Stone IslandRUNS SMALL
    Ami ParisRUNS LARGE
    Stone Island logo

    Stone Island

    RUNS SMALL

    Italian technical wear, runs small, especially in outerwear

    Ami Paris logo

    Ami Paris

    RUNS LARGE

    French contemporary, runs large, relaxed Parisian fit

    Category Match-up

    Stone Island
    Ami Paris
    Tops
    RUNS SMALL

    Crew-necks and sweatshirts run 1 size small with a boxy Italian fit.

    RUNS LARGE

    Runs large. Relaxed oversized silhouettes.

    Outerwear
    RUNS SMALL

    Garment-dyed jackets and shells run 1 size small. Size up for layering.

    No data for Ami Paris Outerwear

    Size Conversion Table

    Your SizeStone IslandAmi Paris
    XXSXS(Runs Small)<XXS(Runs Large)
    XSS(Runs Small)XXS(Runs Large)
    SM(Runs Small)XS(Runs Large)
    ML(Runs Small)S(Runs Large)
    LXL(Runs Small)M(Runs Large)
    XLXXL(Runs Small)L(Runs Large)
    XXLXXXL(Runs Small)XL(Runs Large)
    XXXLXXXL+(Runs Small)XXL(Runs Large)

    * Indicative only. For your personalised size at both brands,

    Common Questions

    Does Stone Island run smaller than Ami Paris?

    Stone Island runs about one size smaller than Ami Paris. If you wear a Medium at Ami Paris, you'll likely need a Large at Stone Island. For an exact recommendation, build a free fit profile.

    Should I size up or down at Stone Island vs Ami Paris?

    Size up one at Stone Island compared to Ami Paris. Stone Island runs smaller, so if you wear a Medium at Ami Paris, try a Large at Stone Island, especially for fitted tops and tailored bottoms.

    If I'm a Medium at Stone Island, what size am I at Ami Paris?

    Since Stone Island runs smaller than Ami Paris, a Medium at Stone Island is roughly equivalent to a Small at Ami Paris. Use the ThisFits fit checker for a recommendation based on your measurements.

    Does Stone Island or Ami Paris fit differently by category?

    Yes, fit varies meaningfully by category. Tops can each fit differently than the brand's overall tendency suggests. See the Category Match-up section below for per-category guidance.

    Which brand is more accurate to its size chart, Stone Island or Ami Paris?

    Stone Island and Ami Paris both publish official size charts, but real-world fit varies by fabric, cut and category. The ThisFits engine cross-references published charts with shopper fit reports across 197+ brands to predict your size in each.

    What if I'm between sizes at Stone Island and Ami Paris?

    If you're between sizes, Stone Island tends to fit closer to the body, so trying the larger size first usually means fewer returns. Always confirm each retailer's return policy before ordering.

    More Comparisons

    Your Personal Size

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