Do Aritzia dresses run small?

    Runs small

    Aritzia dresses run small. Runs small. Fitted silhouettes, size up one.

    Need sizing help for Aritzia dresses?

    Dresses notes

    Get a personal size recommendation for Aritzia dresses, accounts for the brand's cut tendency and your saved measurements.

    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.

    Aritzia Dresses sizing

    Aritzia dresses run small. Runs small. Fitted silhouettes, size up one.

    Best starting point

    Size up once in Aritzia dresses if you want an easy everyday fit.

    Cut note

    Runs small.

    Examples

    Think day dresses, midis, maxis, and occasion pieces.

    Which size should I buy?

    Default to sizing up in Aritzia dresses if you want an easy everyday fit. Cuts shift by fabric and collection in Aritzia dresses, so item-level notes matter.

    Choose the slimmer feel

    Stay at your usual size only if you want a neater fit and feel comfortable in standard cuts.

    Choose the roomier feel

    Go up one size for breathing room, especially when this category uses standard cuts.

    Variability and caveats

    When Aritzia can feel different from the usual sizing tendency

    Cut

    Structured pieces usually feel smaller first, especially through the shoulders, waist, or hip.

    Fabric stretch

    Fabric stretch changes how strongly the sizing tendency shows up: more give softens it, less give makes it more obvious.

    Styling

    Different collections or sub-lines can use different fit blocks, so styling changes may matter as much as the label size.

    Aritzia's in-house brands (Wilfred, Babaton, TNA) use completely different fit blocks. Wilfred is modelled on an extremely slender European frame and typically runs small. TNA athletic wear and Super Puff outerwear are intentionally oversized. This brand-within-brand variance is the highest of any retailer we track.

    Aritzia Dresses size chart

    Compare measurements side-by-side using the label rows below.

    Fit notes below call out cut and measurement differences that matter most on smaller screens.

    SizeBustWaistHipsEUUK
    XS
    		30–32"23–25"33–35"32-344-6
    S
    		32–34"25–27"35–37"368
    M
    		34–36"27–29"37–39"38-4010-12
    L
    		36–38"29–31"39–41"4214
    XL
    		38–40"31–33"41–43"4416

    Measurements are shown in inches where numeric values are available.

    Chart footnotes

    • Sizing can shift by fabric or collection, so item-level cut notes matter most.

    Aritzia dresses usually run small.

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