Hackett Sizing Guide: How to Find Your Perfect Fit and What’s Worth Buying

When it comes to timeless British style, few brands rival Hackett London. Known for its refined tailoring, heritage sportswear, and elegant menswear, Hackett appeals to those who appreciate quality craftsmanship with a modern edge. But navigating Hackett's sizing — especially across different collections like Aston Martin Racing, Hackett Sport, and formalwear — can be confusing. That’s where Tellar.co.uk steps in.

Whether you're looking to buy your first Hackett blazer or replace a staple polo shirt, this sizing guide will help you shop confidently and accurately.

Why Hackett Sizing Can Be Tricky

Hackett’s legacy of bespoke tailoring and European sizing roots can mean their garments run slimmer than standard UK high street brands. Key issues many buyers face:

Slim silhouettes in jackets and shirts
Inconsistent sizing between formalwear, casualwear, and outerwear
European sizing labels (e.g. 48, 50) instead of straightforward S/M/L
Sizing discrepancies across seasonal drops and country of manufacture

At Tellar.co.uk, we’ve decoded sizing across over 1,500 brands, including Hackett, so you don’t need to guess. Our free tool matches your body measurements to the exact Hackett size that will fit best, across shirts, jackets, trousers and more.

👉 Find your Hackett size now in seconds — no guesswork needed.

How to Measure Yourself Accurately

Before choosing your Hackett size, make sure your body measurements are up to date. Here’s what to focus on:

Chest

Measure around the fullest part of your chest, keeping the tape snug but not tight. Hackett blazers tend to be fitted, so accurate chest measurements are key.

Waist

For trousers and tailored shirts, your waist size matters. Measure around your natural waist (not where your jeans sit).

Hips

Especially useful for casual trousers or stretch chinos. Measure around the widest part of your hips.

✅ Don’t have a tape measure? Claim your free one here — courtesy of Tellar.co.uk.

Hackett Fit Types Explained

Hackett offers a variety of fits depending on the product line:

Classic Fit: More relaxed, roomier through the chest and waist — ideal for everyday comfort.
Slim Fit: Tapered silhouette, narrower shoulders and waist — preferred for a modern, tailored look.
Contemporary Fit: A middle ground between classic and slim — balanced for most builds.

Use Tellar.co.uk’s size matching tool to find which fit works best for your body and your preferences.

Size Conversion Chart (Approximate)

UK Size	EU Size	Chest (cm)	Waist (cm)
36	46	91-94	76-79
38	48	95-98	80-83
40	50	99-102	84-87
42	52	103-106	88-91
44	54	107-110	92-95

These are approximate conversions — real sizing varies by product and season. Always use our recommendation tool for the most precise fit.

What to Buy From Hackett: Top Picks

Once you’ve locked in your size, here’s what we recommend buying:

1. Hackett Blazers

The brand’s core offering. Look for wool or linen blends, fully lined with horn buttons. Tailored for formal events or workwear.

🛒 Pro tip: If in-between sizes, size up in slim-fit jackets and adjust with a tailor.

2. Polo Shirts

Hackett polos come in stretch cotton or Pima cotton. Slightly more fitted than Ralph Lauren or Lacoste, so use your chest measurement carefully.

3. Aston Martin Racing Collection

Sporty, sleek and more fitted. These pieces run tighter across the arms and chest, especially jackets and gilets.

4. Knitwear

Hackett’s jumpers and cardigans tend to run true to size, but be cautious if layering over shirts — opt for a roomier fit if needed.

5. Trousers & Chinos

Most Hackett trousers follow EU sizing. Measure waist and inseam, and use Tellar.co.uk to see how they compare with brands you already wear.

Real-Time Sizing for Hackett and 1,500+ Brands

No two brands size alike. That’s why Tellar.co.uk was built — to eliminate size guesswork.

🧠 Our platform does the thinking for you:

Enter your chest, waist, and hip measurements
Or enter your usual size in another brand (e.g. M&S or Reiss)
Instantly get your best size in Hackett

📲 Create your free profile here and never second-guess sizing again.

Why Tellar.co.uk Is the Smarter Way to Shop Hackett

✅ Completely Free

No subscriptions. No fees. Just accurate, unbiased sizing recommendations.

✅ Independent & Honest

Unlike affiliate-heavy platforms, we offer genuine recommendations, even when we don’t earn a commission.

✅ Built for Real Bodies

Whether you're athletic, petite, or somewhere in between, Tellar adjusts to your exact body shape.

How to Get Started with Tellar.co.uk

1. Create a Free Account

Head to tellar.co.uk/login-page and enter your email.

2. Enter Your Measurements or Known Size

Use our manual measurement tool — or select your usual size from a different brand.

3. Get Instant Size Matches

Your recommended Hackett size will appear automatically. Try it with other brands too — over 1,500 are available.

🎁 Request a free measuring tape to ensure you get started accurately.

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Final Word: Fit Hackett with Confidence

Hackett’s elegant style is timeless — but getting the wrong size can throw off the whole look. With Tellar.co.uk, you’ll never need to guess again. Join thousands of users finding their perfect fit, instantly.

👟 From Hackett to Hugo Boss, Barbour to Balmain, Tellar has you covered.

✅ Find your Hackett size in seconds at Tellar.co.uk

It’s free & easy.