Brand Comparison · 2026

    ContemporainevsCOS, Size Comparison

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

    Quick Answer

    Contemporaine vs COS sizing, quick answer

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

    • Contemporaine: runs small
    • COS: 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 Contemporaine and COS 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

    Contemporaine sizing compared to COS: Contemporaine runs small while COS runs large. Here is how the sizes translate.

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

    ContemporaineRUNS SMALL
    COSRUNS LARGE
    Contemporaine logo

    Contemporaine

    RUNS SMALL

    Simons' fashion-forward line, tailored fits, size up

    COS logo

    COS

    RUNS LARGE

    Minimalist Scandi, runs large with generous, architectural silhouettes

    Category Match-up

    Contemporaine
    COS
    Tops
    RUNS SMALL

    Tailored tops, runs small, size up one.

    RUNS LARGE

    Runs large. Relaxed, drapey cuts, size down one for a closer fit.

    Bottoms
    RUNS SMALL

    Tailored bottoms, runs small through the hip.

    TRUE TO SIZE

    True to size. Wide-leg styles are intentionally roomy.

    Dresses
    RUNS SMALL

    Structured dresses, runs small, size up.

    RUNS LARGE

    Runs large. Architectural volume, size down one.

    Outerwear

    No data for Contemporaine Outerwear

    RUNS LARGE

    Runs large. Oversized by design, size down one for a standard fit.

    Size Conversion Table

    Your SizeContemporaineCOS
    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 Contemporaine run smaller than COS?

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

    Should I size up or down at Contemporaine vs COS?

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

    If I'm a Medium at Contemporaine, what size am I at COS?

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

    Does Contemporaine or COS fit differently by category?

    Yes, fit varies meaningfully by category. Tops, Bottoms, Dresses 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, Contemporaine or COS?

    Contemporaine and COS 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 Contemporaine and COS?

    If you're between sizes, Contemporaine 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

    See your size in Contemporaine&COS

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