Brand Comparison · 2026

    ZaravsASOS Design, Size Comparison

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

    Quick Answer

    Zara vs ASOS Design sizing, quick answer

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

    • Zara: runs small
    • ASOS Design: fits true to size
    • 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 Zara and ASOS Design 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

    Zara sizing compared to ASOS Design: Zara runs small while ASOS Design fits true to size. Here is how the sizes translate.

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

    ZaraRuns small
    ASOS DesignTrue to size
    Zara brand mark

    Zara

    Runs small

    European tailoring, typically runs small, size up

    ASOS Design brand mark

    ASOS Design

    True to size

    True to size; Petite line runs very short

    Category Match-up

    Zara
    ASOS Design
    Tops
    Runs small

    Runs narrow in the shoulders and chest. If between sizes, size up.

    True to size

    Varies by sub-brand. 'Design' line is typically true to size.

    Bottoms
    Runs small

    European tailoring tends to run slim through the thigh. Most customers size up one in Zara bottoms.

    No data for ASOS Design Bottoms

    Dresses
    Runs small

    Often runs short. Consider sizing up for length.

    True to size

    Standard fit is reliable, but 'Petite' runs very short.

    Size Conversion Table

    Your SizeZaraASOS Design
    XXSXS(Runs Small)XXS
    XSS(Runs Small)XS
    SM(Runs Small)S
    ML(Runs Small)M
    LXL(Runs Small)L
    XLXXL(Runs Small)XL
    XXLXXXL(Runs Small)XXL
    XXXLXXXL+(Runs Small)XXXL

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

    Common Questions

    Does Zara run smaller than ASOS Design?

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

    Should I size up or down at Zara vs ASOS Design?

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

    If I'm a Medium at Zara, what size am I at ASOS Design?

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

    Does Zara or ASOS Design fit differently by category?

    Yes, fit varies meaningfully by category. Tops, 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, Zara or ASOS Design?

    Zara and ASOS Design 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 Zara and ASOS Design?

    If you're between sizes, Zara 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 Zara&ASOS Design

    Build your fit profile once and see your likely size for Zara and ASOS Design, based on your measurements.

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