What Is Custom Sizing in Fashion?
Custom sizing means garments are tailored to your individual body shape—whether that’s made-to-measure suits, adjustable dress lengths, or altered trousers. It offers a more accurate fit than standard S/M/L sizing and has become increasingly accessible thanks to high-street and premium brands modernising their offerings.
At Tellar.co.uk, we guide users through exact measurement matching using our free sizing tool—so you always know which brands offer custom fit or inclusive sizing based on real data.
🔎 How Custom Sizing Works
Custom or made-to-order sizing options usually fall into three types:
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In-store alterations – Shortening hems or sleeves, taking in waistbands.
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Made-to-measure – You provide your measurements; the brand adjusts the garment or makes it from scratch.
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Extended sizing with smart matching – Brands offer a wide range (e.g. 00–24 or XXS–4XL), and tools like Tellar ensure the best match for your body.
🇬🇧 UK High-Street Brands Offering Custom or Tailored Fit
1. Marks & Spencer (M&S)
M&S provides in-store tailoring on many of their suiting and workwear items. Their online fit filters also allow you to choose short, regular or long lengths—ideal if you’re shopping off the rack but need small tweaks.
Best picks for tailoring:
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Wide-leg suit trousers
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Stretch wool blazers
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Linen-blend dresses
🔗 Get full brand coverage in: Best UK Shops for Affordable Workwear
2. Hawes & Curtis
Known for Jermyn Street-quality shirting, Hawes & Curtis offer made-to-measure dress shirts and tailoring services in-store and online. With collar, sleeve and torso length options, they cater especially well to professional wear.
🔗 Style smarter with: Where to Buy a Capsule Clothes Collection for Women and Men
3. Mølby the Label
An indie UK brand offering custom-sized dresses. Customers can input their exact bust, waist, hip and length preferences. Garments are handmade and size-inclusive, up to UK 32.
Perfect for:
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Custom-fit midi dresses
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Tailored waist and bust proportions
🔗 See styling options in: Neutral Basics: What to Buy and Best Brands
4. Uniqlo UK (Basic Adjustments)
Uniqlo offers free in-store hemming on many trouser styles—great for everyday basics like jeans and chinos. It’s not fully bespoke, but it solves a key problem: getting the length right without paying for a tailor.
🇺🇸 Designer & Premium Brands with Custom Sizing
1. Everlane (Inclusive + Fit Match)
Everlane offers a broad size range across basics (XXS–4XL in many lines) and has high consistency between styles. Pair this with Tellar’s free sizing tool to determine your best matches instantly.
🔗 Explore them in: Neutral Basics: What to Buy and Best Brands
2. Levi’s (Hemming + Smart Fit Ranges)
Levi’s offers professional denim tailoring in many stores. Their jeans also come in different inseam lengths and waist configurations, which Tellar decodes brand by brand.
🔗 For a tailored denim look, read: Where to Buy a Capsule Clothes Collection for Women and Men
3. Reiss (UK/US)
Reiss is known for premium tailoring off the rack. Many of their suits and dresses are designed with clean darts, built-in tailoring points, and precise sizing. While not custom-built, the cut is close enough to pass for made-to-measure when chosen with Tellar’s help.
🔗 Covered in: Best UK Shops for Affordable Workwear
4. COS & Arket
These Scandi brands offer structured fits and boxy silhouettes that often run oversized. Tellar helps you size down or adjust by shape. Some COS trousers also come with adjustable waist tabs or longer inseams, ideal for tailoring.
🔗 Learn more in: Neutral Basics: What to Buy and Best Brands
🧵 Key Differences: Custom vs Altered
Type |
Brands |
Example |
|---|---|---|
Made-to-Measure |
Hawes & Curtis, Mølby |
Enter exact measurements online |
In-store Alterations |
M&S, Uniqlo, Levi’s |
Hems, sleeves, waist |
Extended Smart Sizing |
Everlane, Reiss, COS, Arket |
Combine Tellar's tool with wide size ranges |
👚 Ideal Categories for Custom Fit
Custom sizing isn’t just for suits. Here are the clothing types where you’ll benefit most:
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Trousers & Jeans – waist, rise, and length adjustments change the whole silhouette
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Blazers & Outerwear – shoulder and sleeve fit is everything
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Dresses – waist-to-hip proportions and bust shaping matter more than size tags
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Shirts – collar size and torso tapering are essential, especially for workwear
✅ Fit Tips with Tellar.co.uk
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Take Your Real Measurements
Use a soft tape and note your bust, waist, and hip in CM or Inches.
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Use the Tellar Sizing Tool
Get matched to over 1,500 brands in seconds, including Reiss, M&S, Zara, Everlane, Mango, COS, and Levi’s.
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Choose Smarter, Not Smaller
Don’t downsize to "look fitted". Instead, shop brands that tailor to your body’s shape or let you adjust garments via length or darts.
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Check the Brand’s Construction
Look for adjustable waist tabs, removable belts, tie-fronts, and side zips—they often signal easier personalisation.
📌 Tellar Backed Resources
Here’s where to go next on Tellar for smart-fit shopping advice:
All posts are written with honest insights, updated sizing data, and no affiliate bias—just good advice.
📲 Stay Connected with Tellar
Follow for daily fit fixes, styling advice, and brand insights:
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Instagram: @Tellarsizing
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Twitter/X: @Tellar100
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Facebook: Tellar Sizing
Final Thoughts
Whether you’re shopping at M&S or COS, Hawes & Curtis or Levi’s, custom sizing is no longer just a designer luxury. With Tellar’s free measurement tool, live style posts, and accurate brand-matching system, you can shop smarter and find clothes that truly fit—without costly alterations or second guesses.
Explore the Tellar library today and take the guesswork out of fashion fit.