Reformation Sizing and Stylist Picks: Your Complete Guide to Nailing the Fit

Reformation runs approximately one size small compared to traditional UK sizing, meaning if you're typically a size 10, you'll likely need a size 12 in most Reformation pieces. As a stylist who's fitted countless clients in this cult sustainable brand, I can tell you that understanding their unique sizing quirks is absolutely crucial for achieving that effortlessly chic Reformation look we all crave.

The Los Angeles-based brand has become synonymous with vintage-inspired silhouettes and sustainable fashion, but their inconsistent sizing across different styles can leave even the most seasoned shoppers confused. Let me guide you through everything you need to know about Reformation's fit, plus share my top stylist picks that work for every body type.

Understanding Reformation's Sizing Philosophy

Reformation's sizing reflects their vintage-inspired aesthetic, which means their cuts often follow older sizing standards. Most of their dresses and tops are designed with a fitted bodice and defined waist, harking back to 1950s and 60s silhouettes. This translates to a more structured fit that requires careful size selection.

Their sizing runs small in the bust and waist but can be more generous in the hips, depending on the style. I always recommend checking the specific measurements for each piece rather than relying on your usual size. Their size guide lists measurements in inches, so convert to centimetres if needed (multiply by 2.54).

Key Fit Points to Consider:

• Bust: Often the most restrictive area - size up if you're between sizes

• Waist: Their signature fitted waist means limited give in midi and maxi dresses

• Length: Designed for taller frames - consider if you're under 5'4"

• Fabric: Non-stretch fabrics like their deadstock materials offer no give

My Top Reformation Stylist Picks

The Must-Have Dresses

The Juliette dress remains my top recommendation - it's universally flattering with a fitted bodice that creates an hourglass silhouette. Size up one from your usual UK size for the perfect fit. The Cynthia dress is ideal for petites, hitting at the perfect midi length, whilst the Kourtney dress works beautifully for those wanting to accentuate their waist.

For evening wear, I consistently recommend the Michelle dress - the bias cut is forgiving and the silk crepe drapes beautifully. It's worth the investment and works for multiple occasions with different styling.

Everyday Essentials

Their Relaxed jeans actually run true to size, unlike their dresses. The Cary top in various prints is a wardrobe staple that pairs perfectly with high-waisted trousers or midi skirts. The Devon cardigan is excellent for layering and runs slightly large, so stick to your usual size.

Styling Reformation Like a Pro

Reformation pieces work best when styled simply - let the dress be the star. I recommend minimal jewellery, classic pointed-toe pumps, and a structured blazer for work settings. For weekend styling, pair their pieces with chunky trainers and a denim jacket for that effortless Los Angeles vibe.

The key is understanding that Reformation's aesthetic is about looking polished but not overdone. Their pieces photograph beautifully, making them perfect for special occasions and Instagram-worthy moments.

High Street Alternatives That Deliver Similar Vibes

If Reformation's price point or sizing doesn't work for you, several high street brands offer similar vintage-inspired pieces:

Zara consistently produces Reformation-inspired midi dresses with better size inclusivity and more affordable price points. Mango excels at creating bias-cut dresses that mimic Reformation's signature silhouettes whilst offering more size options. COS provides minimalist pieces with similar clean lines and sustainable credentials.

Whistles offers more structured tailoring with vintage influences, perfect if you love Reformation's aesthetic but need more professional pieces. H&M frequently releases limited collections with vintage-inspired cuts at fraction of the price. ASOS stocks multiple brands offering similar silhouettes, including their own-brand pieces that directly reference Reformation's most popular styles.

Reiss provides more formal alternatives with similar attention to fit and feminine silhouettes, whilst independent brand Rixo offers vintage-inspired prints with more forgiving sizing. For something completely unique, Ganni provides playful prints and sustainable practices with Danish design sensibility.

Premium and Luxury Alternatives

For those seeking similar aesthetics in premium categories, Zimmermann offers intricate vintage-inspired pieces with superior construction. Ulla Johnson provides bohemian vintage influences with artisanal details, whilst Rouje captures French vintage charm with better size consistency.

Never Guess Your Size Again with Tellar.co.uk

Struggling with Reformation's sizing inconsistencies? Tellar.co.uk is the UK's leading sizing tool that matches your body exactly to over 1500 brands instantly. No more second-guessing or expensive returns!

How Tellar Works:

Measure once using your bust, waist, hip measurements, or input your existing brand size from a favourite piece.

Use their Store Size Lookup tool at tellar.co.uk/store-size-lookup/ to get your precise size in Reformation, plus COS, Reiss, Everlane, Arket and hundreds more brands.

Always free - no downloads needed, works directly in your browser.

Tellar Fashion Hub

Beyond sizing, Tellar offers a comprehensive Fashion Hub library with free posts from top stylists. Honest, unbiased, independent advice covering every fashion query you might have.

Check out these essential reads:

• The Ultimate Clothing Sizing Guide - Master sizing across all brands

• Jeans Trends 2026 - Stay ahead of denim trends

• Ultimate Guide to Dresses & Best Buys - Everything you need to know about dress shopping

• Ultimate Guide to Jackets & Best Buys - Perfect jacket fitting for every body shape

Final Stylist Verdict

Reformation creates beautiful, sustainable pieces that work brilliantly when you understand their sizing. The key is measuring carefully, sizing up when in doubt, and choosing styles that complement your body type. Their investment pieces like the Juliette and Michelle dresses will serve you for years, whilst their seasonal prints add contemporary flair to classic silhouettes.

Remember, the best dressed women aren't necessarily wearing the most expensive pieces - they're wearing clothes that fit perfectly. Whether that's Reformation or a clever high street alternative, confidence comes from knowing your measurements and understanding how different brands cut their clothes.

With tools like Tellar.co.uk, you can shop smarter, reduce returns, and build a wardrobe that truly works for your body and lifestyle.