Saint Laurent Sizing Guide UK: How to Find Your Perfect Size and What’s Worth Buying
Author: Stylist and brand team at Tellar
Date: 2025
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Saint Laurent—often abbreviated to YSL—is one of the most iconic luxury fashion houses in the world. Founded in 1961 by Yves Saint Laurent, the label is known for its modern tailoring, timeless staples, and boundary-pushing style. But when it comes to Saint Laurent sizing, things can get confusing—especially with variations between French, Italian, and UK size equivalents.
Whether you're eyeing a tailored blazer, a pair of sharp jeans, or the perfect leather jacket, getting the size right is crucial. This guide from Tellar.co.uk will help you decode Saint Laurent sizing, highlight what’s truly worth buying, and show you how to get a personalised fit recommendation in seconds.
Why Saint Laurent Sizing Feels Confusing
Saint Laurent collections use French and Italian sizing, but their ready-to-wear items are sold globally. That means shoppers in the UK are often stuck trying to convert sizes or guess based on brand assumptions.
For example:
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A French 38 typically translates to a UK 10
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A Saint Laurent 42 in trousers may feel like a UK 12 in one season but a UK 10 in another
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Men’s Saint Laurent denim often runs smaller than expected—especially in the waist
This variation is due to seasonal cuts, different factories, and design changes, making it essential to check sizing per item, rather than assuming a fixed conversion.
🔍 Get Instant Size Recommendations for Saint Laurent
Skip the guesswork. Use Tellar.co.uk to find your exact size in Saint Laurent based on your actual body measurements.
✅ Just enter your chest, waist, and hips
✅ Choose your preferred units (CM or Inches)
✅ Tellar matches your measurements to over 1,500 brands, including Saint Laurent
✅ You’ll see your best-fitting size instantly, plus size chart comparisons and buying tips
👉 Create Your Free Profile Now
📏 Don’t have a tape measure? We’ll send you one free
How Does Saint Laurent Fit? Key Sizing Insights
1. Saint Laurent Blazers and Tailoring
Saint Laurent’s women’s and men’s blazers are notoriously slim. Expect:
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Narrow shoulders
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Cinched waist
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Shorter sleeve length
We recommend sizing up if you prefer a more relaxed or wearable fit, especially in styles like the Teddy Jacket or Classic Wool Blazer.
🔗 Read: How to Measure Your Shoulders Properly
2. Saint Laurent Jeans and Trousers
Saint Laurent denim is:
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Cut very slim in both men’s and women’s fits
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Often non-stretch, especially in raw or rigid options
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Prone to running small at the waist
If you're in between sizes, go one size up—especially in popular cuts like Skinny Jeans or Cigarette Pants.
🔗 Best Slim-Fit Jeans by Brand: Tellar's Sizing Guide
3. Saint Laurent Dresses and Eveningwear
From slinky cocktail dresses to dramatic evening gowns, Saint Laurent womenswear tends to run true to size—but with one caveat: bust and waist measurements are key.
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If you're curvier, you may need to size up for tailored fits
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Satin and silk pieces offer no stretch, so check your body measurements carefully
🔗 How to Measure Bust, Waist & Hips Accurately
4. Saint Laurent Footwear
Saint Laurent shoes (including the iconic Tribute sandals, Court pumps, and Wyatt boots) tend to:
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Run half a size small, especially in point-toe heels
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Have narrow insteps—which can affect comfort if you have wide feet
We recommend going 0.5 sizes up in most cases.
🔗 Read: Designer Shoe Sizing Differences Explained
⭐ What to Buy from Saint Laurent: Worth-the-Investment Pieces
If you're spending £1,000+ on a single piece, it needs to be worth it. Based on fit, quality, and resale value, these are the standout Saint Laurent pieces that are worth buying:
1. The Wool Blazer (Le Smoking or Classic Fit)
A true wardrobe staple. Works over dresses, jeans, or tailored trousers. Size up for layering.
2. Slim or Skinny Jeans
Sharp, edgy, and surprisingly versatile. Just be careful with inseam length and waist fit—Tellar can help.
3. Wyatt Chelsea Boots or Army Combat Boots
These run small, but they last years and go with everything. Tellar’s shoe sizing tool can help you convert to UK fit.
4. Silk Dresses or Evening Gowns
If you’re buying Saint Laurent for a special occasion, invest in a structured dress. Get your measurements right—Tellar will recommend your best size per product line.
✅ How to Get Started with Tellar.co.uk
Tellar.co.uk is the UK's leading free sizing tool, trusted by thousands to decode luxury brand sizing, fast.
Here’s how to get started:
Step 1: Measure Yourself
Use a soft tape measure to record your:
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Chest
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Waist
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Hips
Need help? Tellar’s measurement guide is here
Or request a free tape measure
Step 2: Create Your Free Account
Head to www.tellar.co.uk and click “Create Profile”
Or go directly to Create Profile Here
Step 3: Get Real-Time Sizing Matches
Once logged in, select Saint Laurent or any of 1,500+ brands
You’ll see your recommended size, a breakdown by product type, and a comparison to similar brands.
🔗 Useful Links for Saint Laurent Shoppers
📲 Follow Tellar for Style and Sizing Help
Want real-time sizing tips, trending fashion insights, and exclusive updates?
Follow Tellar.co.uk on:
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Instagram: @Tellarsizing
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Pinterest: TellarUK
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Facebook: Tellar Sizing
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Twitter: @Tellar100
Final Thought: Don’t Risk the Wrong Fit
Saint Laurent is a premium brand with premium price tags. You deserve to feel confident in every item you invest in. Whether you’re browsing blazers, boots, or bold dresses—let Tellar.co.uk guide your sizing decision with precision.
No more returns. No more guesswork. Just perfect-fit shopping.