Reformation Sizing Review: What Size Are You Really?

If you’ve ever scrolled through Reformation’s dreamy dresses and chic silhouettes, you know how tempting it is to hit “Add to Bag.” But if you’re like me, the sizing part probably makes you stop and think, “Wait… what size am I actually in Reformation?”

Reformation Sizing Review: What Size Are You Really?

You’re not alone. Reformation sizing can be confusing because their pieces are designed to look tailored and figure-hugging, but not all styles fit the same. After trying (and returning) my fair share of their dresses and jeans, I decided to share an honest sizing guide so you can order with confidence—and skip the frustrating trial and error.


Why Reformation Sizing Feels Tricky

First things first—Reformation tends to run true to size for some pieces and slightly small for others, especially their fitted styles. The brand is all about sustainable fabrics and structured tailoring, which often means less stretch. So if you’re used to brands that include a lot of spandex in their designs, Reformation might feel snugger than expected.

Here’s the catch: not every Reformation dress is cut the same way. A bias-cut silk slip will drape differently than a structured mini with a fitted waist. That’s why knowing your body shape—and which fabrics have give—matters so much.


The Big Question: Should You Size Up or Down?

The short answer: it depends on the style. If you’re between sizes or prefer a little breathing room, size up for fitted dresses and tops. For more relaxed styles, like wrap dresses or flowy skirts, your true size usually works.

Here’s what I’ve learned piece by piece:


1. Dresses

Reformation dresses are the brand’s signature, and honestly, they’re gorgeous—but they can be unforgiving in the waist and bust area. If you have a fuller bust or wider hips, you might want to size up, especially in fabrics like linen or viscose that don’t stretch.

  • Fitted minis & midis (like the Juliette or Sigmund): Run snug. If you’re between sizes, go up.

  • Wrap dresses (like the Rouen): These are more forgiving, so stick to your regular size.

  • Slip dresses (like the Winslow): True to size, but check the bust if you’re curvy.


2. Tops

Reformation tops can feel like a gamble. Cropped blouses and corset-inspired styles often run tight in the ribs and bust. If you hate feeling restricted, size up. If it’s a stretchy knit, you can stick with your usual size.


3. Jeans

Ah, Reformation denim—the eco-friendly jeans everyone raves about. Here’s the truth: their rigid denim (zero stretch) runs small at the waist. I always size up one full size for comfort. For jeans with stretch, your usual size should be fine.


The Fabric Factor

Fabric makes or breaks the fit with Reformation. Their eco-friendly fabrics like TENCEL™ and viscose feel luxe but have minimal give, which can make a big difference in sizing. On the flip side, pieces with a touch of elastane or smocking feel way more forgiving.

Quick tip: Always read the fabric details before ordering. It’s the easiest way to avoid returns.


Reformation Size Chart: Is It Accurate?

The brand’s size chart is pretty spot-on—if you measure yourself honestly. Their clothes are designed to fit close to the body, so those listed inches matter. If you’re in between, I’d lean toward the larger size unless the fabric is stretchy.


My Personal Sizing Story

Let me keep it real: the first time I ordered a Reformation dress, I assumed my usual size would work. Big mistake. I couldn’t zip it past my ribs, and the bust felt like a corset from the 1800s. After a few tries, I figured out a system:

  • Always check reviews (people often share if something runs small).

  • Pay attention to the style (structured = size up, flowy = true to size).

  • Don’t trust your ego—take the bigger size if needed.

Once I cracked that code, Reformation became my go-to for weddings, brunches, and date nights. Their dresses really do make you feel like the main character—just get the size right.


Pro Tips for Getting the Perfect Fit

Here’s what I recommend before you check out:

  1. Measure yourself: Waist, bust, and hips—don’t guess.

  2. Read product reviews: The Reformation community is brutally honest.

  3. Know your fabric: Non-stretch = size up. Stretch = stay true.

  4. Order two sizes if unsure: Yes, it’s a hassle, but way better than disappointment.


Final Thoughts

Reformation sizing isn’t one-size-fits-all—literally. But once you learn their fit quirks, shopping becomes a breeze. If you love chic, sustainable fashion and want pieces that feel timeless, it’s worth figuring out your perfect size.

And here’s a little confidence boost: your size does NOT define your style. Whether you go up or down a size, the only thing that matters is that you feel amazing in what you wear.


What’s Your Experience?

Have you nailed your Reformation size? Or are you still in the trial-and-error phase like I was? Drop your thoughts—I’d love to hear your tips.

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