Reformation has built a loyal following on flattering cuts and a strong aesthetic — and an almost equally strong reputation for sizing that doesn't always match expectations. If you've added something to cart and then spent ten minutes second-guessing which size to pick, you're not alone. Here's what the pattern across real buyer feedback actually shows, category by category.
The Short Version: Reformation Runs Small, Especially in Dresses
Across a large volume of customer fit reviews, the overwhelming consensus is that Reformation dresses run small, with a sizable portion of reviewers specifically recommending sizing up by a full size or more to get a comfortable fit. Some reviewers reported needing to size up by one to two full sizes from their usual size in other brands.
That said, it's not universal — plenty of reviewers do report a true-to-size fit on specific styles, which points to something worth keeping in mind throughout this whole guide: Reformation's sizing is genuinely inconsistent across different garment types and even between different dress silhouettes within the same brand.
Dresses: The Category Most Likely to Run Small
This is where the "size up" advice shows up most consistently and most strongly. Multiple reviewers specifically describe needing one to two sizes above their usual size to get a comfortable fit in Reformation dresses, with fitted or structured silhouettes running smaller than looser, more flowing styles.
If you're ordering a Reformation dress for the first time, sizing up by one size from your usual size is a reasonable starting assumption based on the overall pattern, with an additional size up if the specific style is fitted or has limited stretch in the fabric.
Tops: More Consistent, But Still Worth Checking
Tops showed meaningfully more true-to-size feedback compared to dresses, with reviewers more often reporting their usual size worked as expected. That said, feedback on bust fit specifically varied depending on cup size, with some reviewers finding certain styles ran small through the chest regardless of overall size.
If a specific top style is designed for a closer, more fitted silhouette, that's where sizing up becomes more relevant again — looser or relaxed-fit tops tend to behave more predictably true to size.
Pants and Denim: Watch the Waist Specifically
Reformation pants show a consistent pattern of running small specifically through the waist, even when reviewers reported the overall size as otherwise correct. Several reviewers who regularly buy Reformation noted needing to size up specifically for pants, even after knowing the brand's general sizing quirks from prior dress purchases.
This is a useful distinction — someone who's found their correct Reformation dress size shouldn't necessarily assume that same size translates directly to pants from the same brand.
Why the Inconsistency Happens
Broader brand reviews describe Reformation's sizing as inconsistent across styles, a pattern echoed by customers across different review platforms rather than isolated to one retailer's feedback. This kind of style-to-style variation is common with brands that don't use one single, standardized size block across their entire collection — each style can be cut slightly differently, which is part of why one Reformation dress running true to size doesn't guarantee the next one will.
If You're Shopping on Amazon Specifically
It's worth knowing upfront: Reformation isn't sold through Amazon directly, so you won't find their pieces to search for there. If you're drawn to Reformation's aesthetic — clean silhouettes, flowing dresses, a slightly romantic, sustainable-minded style — but want an Amazon-available alternative with a similarly flattering fit, a few comparable categories are worth checking out instead.
A flowing, true-to-size midi dress in a similar silhouette is a reasonable substitute if sizing uncertainty is the main hesitation.
🔗 Search Amazon for: women's flowy midi dress true to size
For a similarly tailored, higher-waisted trouser without the waist-specific sizing quirks reported with Reformation's pants.
🔗 Search Amazon for: women's high waisted tailored trousers
General Tips for Ordering From Any Brand With Inconsistent Sizing
Check the specific item's reviews rather than relying on general brand reputation alone — as the category breakdown above shows, "runs small" doesn't apply evenly across dresses, tops, and pants. When in doubt between two sizes, sizing up is the safer default based on the overall pattern, particularly for fitted or structured styles with limited stretch. And always check the brand's specific return policy before ordering a first-time size, since even careful size-chart comparison doesn't fully eliminate the guesswork with brands that vary this much style to style.
FAQ
Does Reformation run small in every category?
No — dresses show the strongest pattern of running small, while tops are more frequently reported as true to size. Pants run small specifically in the waist even when the overall size otherwise fits.
Should I always size up with Reformation?
Not automatically, but it's the safer default for dresses and pants specifically, especially for fitted or structured styles. True-to-size results are more common with looser or relaxed-fit tops.
Is Reformation available on Amazon?
No, Reformation sells through its own site and select retail partners, not Amazon. If you're shopping Amazon specifically, a similar silhouette from another brand is the practical alternative.
Why does sizing vary so much between different Reformation styles?
Brands without one standardized size block across their full collection often see this kind of variation — each style can be cut slightly differently, which is part of why consistent "size up" advice doesn't apply evenly across every piece.
Final Thought
Reformation's sizing inconsistency isn't a fluke — it shows up consistently enough across customer feedback that it's worth planning around rather than being caught off guard by. When in doubt, size up for dresses and pants specifically, check item-level reviews before trusting the general brand reputation alone, and don't assume one correct size translates cleanly across every category from the same brand.
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