Size Guide

Find Your SUITBAE Size

Our suits are designed to be mixed and matched, so you can select separate jacket, waistcoat and trouser sizes for a better overall fit. Measure your chest, the widest part of your stomach and consider your usual jeans or chino size before choosing.

Use the widest part of your body as your starting point

Your chest measurement alone may not give the correct result. If your stomach is wider than your chest, this needs to be considered when choosing your jacket and waistcoat.

Most men need different sizes across their jacket, waistcoat and trousers. With SUITBAE, you can choose each item separately.

Selected suits are available up to a 58-inch chest and 52-inch trouser waist.

1

Measure Your Chest

Wrap the measuring tape around the fullest part of your chest, underneath your arms. Keep the tape level and comfortably fitted without pulling it tight.

2

Measure Your Stomach

Measure around the widest part of your stomach without pulling your stomach in. If this measurement is larger than your chest, it must be considered when choosing your jacket and waistcoat.

3

Check Your Jeans or Chino Size

Check the size of jeans or chinos that currently fit you comfortably. For SUITBAE suit trousers, we recommend choosing one size larger than your normal jeans or chino size.

4

Choose Separate Sizes

Choose your jacket, waistcoat and trouser sizes separately. Do not assume that all three pieces need to be the same labelled size.

Jacket and Waistcoat Size Guide

Your chest measurement is the starting point for your jacket size. However, if your stomach is wider than your chest, you may need a larger waistcoat or jacket to fit comfortably around your middle. The jacket shoulders should still sit correctly, and men with a larger stomach may achieve the best fit by wearing the jacket open.

Chest measurement Suggested jacket size General fit range
34 inches 34 Skinny fit
36 inches 36 Skinny fit
38 inches 38 Skinny fit
40 inches 40 Tailored fit
42 inches 42 Tailored fit
44 inches 44 Tailored fit
46 inches 46 Tailored fit
48 inches 48 Relaxed fit
50 inches 50 Relaxed fit
52 inches 52 Relaxed fit
54 inches 54 Relaxed fit
56 inches 56 Relaxed fit
58 inches 58 Relaxed fit

This is a starting guide. Body shape, shoulder width and the cut of the individual suit can affect the final size required.

Trouser Size Guide

SUITBAE suit trousers generally fit smaller than everyday jeans or chinos. We recommend choosing one size larger than the jeans or chinos that currently fit you comfortably.

Normal jeans or chino size Suggested suit trouser size Advice
26 28 Choose one size larger
28 30 Choose one size larger
30 32 Choose one size larger
32 34 Choose one size larger
34 36 Choose one size larger
36 38 Choose one size larger
38 40 Choose one size larger
40 42 Choose one size larger
42 44 Choose one size larger
44 46 Choose one size larger
46 48 Choose one size larger
48 50 Choose one size larger
50 52 Choose one size larger

Use a pair of jeans or chinos that currently fit comfortably as your reference. If they already feel tight, you may need more than one size larger. Many SUITBAE trousers also include a hidden stretch waistband for additional comfort.

Understanding Our Fits

Skinny Fit

Usually sizes 34 to 38

A closer fit through the jacket, waistcoat and trousers. Best suited to slimmer builds or customers who prefer a fitted appearance.

Tailored Fit

Usually sizes 40 to 46

Shaped through the body without feeling overly tight. This is the most common fit across the middle of our size range.

Relaxed Fit

Usually sizes 48 to 58

Designed with more room through the body while maintaining a smart, structured appearance.

Important Fitting Advice

  • Measure both your chest and the widest part of your stomach before choosing a jacket or waistcoat.
  • If your stomach is wider than your chest, you may need a larger waistcoat or jacket to fit comfortably around your middle.
  • The jacket shoulders should finish close to the edge of your natural shoulders without overhanging.
  • Your jacket should sit smoothly across the upper back without strong pulling or horizontal creases.
  • A waistcoat should cover the waistband of your trousers without hanging too low.
  • The waistcoat should sit close to the body but should not pull heavily around the buttons.
  • If your stomach is considerably larger than your chest, prioritise a comfortable waistcoat and wear the jacket open.
  • Choose suit trousers one size larger than your normal jeans or chino size.
  • If your normal jeans or chinos already feel tight, consider going up by more than one size.
  • Jacket sleeves and trouser lengths can usually be adjusted easily by a local tailor.

Still unsure about your size?

Contact our team before ordering and send us your chest measurement, widest stomach measurement, height and normal jeans or chino size. We will help you choose the most suitable jacket, waistcoat and trouser combination.

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Sizing Questions

Should I use my chest or stomach measurement?
Your chest measurement is the starting point for your jacket. However, if your stomach is wider than your chest, you may need a larger waistcoat or jacket to fit comfortably around your middle. Keep the jacket shoulders as neat as possible and wear the jacket open if fastening it causes pulling.
Do all three pieces need to be the same size?
No. You can select separate jacket, waistcoat and trouser sizes. This is often the best way to achieve a comfortable and balanced fit.
What trouser size should I choose?
Choose one size larger than the jeans or chinos that currently fit you comfortably. For example, if you normally wear a 34 waist in jeans or chinos, choose a 36 in SUITBAE suit trousers.
What if my jeans or chinos already feel tight?
If your usual jeans or chinos are already tight, consider choosing more than one size larger in your suit trousers.
What if I am between two jacket sizes?
Focus first on the shoulders and upper back. If the smaller jacket feels tight across your shoulders, upper arms, back or stomach, select the larger size.
What if my shoulders are narrow but my stomach is larger?
Choose a waistcoat that fits comfortably around your stomach. For the jacket, keep the shoulders as neat as possible and wear it open if fastening it causes pulling across the front.
What if the suit does not fit?
The fastest option is to place a new order for the correct size and return the original items for a refund. You may also return the original items to us and request an exchange once they arrive, or exchange them in person at one of our Blackpool, Barnsley or Manchester showrooms.
Can I try the suit on in a showroom?

Yes. Visit SUITBAE in Blackpool, Barnsley or Manchester. No appointment is required, and our team can help you find the correct size for each part of the suit.

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Are all sizes available in every suit?
No. Size availability varies between styles. Check the size selectors on the individual product page to see which jacket, waistcoat and trouser sizes are currently available.