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Sizes · Guide 2026

T-shirt size guide: size chart, measuring and group orders

Updated 14 September 2026 · Prices checked 14 September 2026

The wrong size is the most common reason a printed shirt ends up in a drawer. This guide gives you a chest-based size chart from XS to XXXL, shows how to measure properly and suggests a size split for group orders when you cannot ask everyone.

Quick answer

T-shirt sizes are based on your chest measurement, taken around the fullest part of the chest. For classic Fruit of the Loom tees the guide is approx.: S 89 to 94 cm, M 95 to 100 cm, L 101 to 106 cm, XL 107 to 112 cm. Between two sizes, choose the larger one. For adult group orders a split of approx. 10 % S, 30 % M, 30 % L, 20 % XL and 10 % XXL is a sensible starting point.

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How do T-shirt sizes work?

T-shirt sizes are based mainly on the chest measurement of the body. The letter size (S, M, L) is just a label for a range of chest measurements, and every brand draws those ranges slightly differently. Comparing centimetres is the only reliable way to pick the right size across brands.

Length and sleeve length follow the chest size, so if the chest fits, the rest usually does too.

What is the T-shirt size chart in cm?

This chart shows the approximate body chest measurement for classic Fruit of the Loom T-shirts:

SizeChest (body), approx.Typical wearer
XS84 to 88 cmSlim teens, petite adults
S89 to 94 cmSlim adults
M95 to 100 cmAverage build
L101 to 106 cmAverage to broad build
XL107 to 112 cmBroad build
XXL113 to 118 cmLarge build
XXXL119 to 124 cmVery large build

These are body measurements, not garment measurements. The shirt itself is wider to give ease of movement. Ladies' and fitted cuts use different charts, so check the product page.

How do you measure your chest correctly?

  1. Use a soft tape measure and wear a thin top or nothing at all.
  2. Wrap the tape around the fullest part of the chest, under the arms and across the shoulder blades. Keep it level.
  3. Read the measurement after breathing out normally. The tape should be snug, not tight.

No tape measure? Lay a T-shirt that fits well flat, measure straight across from armpit to armpit and double it. Subtract a few centimetres of ease and you have a rough body measurement.

What if you are between two sizes?

Cotton can shrink a little in the first washes. Wash inside out at 30 to 40 °C and avoid the tumble dryer to keep the fit.

How should you split sizes for a group order?

The best method is to ask. A simple form or chat poll with name and size avoids nearly all wrong sizes. If that is not possible, these splits are a sensible starting point for 50 shirts:

GroupXSSMLXLXXLXXXL
Mixed adults0515151050
Mostly women, young groups4121612510
Sports team, work crew0210161363

Order one or two extra pieces in M and L. They cover late sign-ups and misprints. Hoodies are usually worn looser, so many people pick the same size or one up; see blank hoodies.

How do you collect sizes without chaos?

Collecting sizes is where most group orders go wrong. A few simple habits help:

For printed names, sort the list by size so the printer can match each name to the right shirt without guessing.

Which sizes are available for blank tees?

The plain Fruit of the Loom T-shirt at Marmalade Co. comes in XS to XXXL and 15 colours, so one design can cover a whole group. It costs €6.95, 5 % less from 3 pieces and 10 % less from 5 pieces (€6.26 each). Check in the basket how mixed sizes are counted towards the discount.

DHL delivery is €7 flat, in about 2 to 3 working days to Ireland, Austria, Belgium, Finland, France, Germany, Italy, the Netherlands, Poland, Portugal and Spain. The shop does not currently deliver to the United Kingdom. Planning the print too? Start with blank T-shirts for printing.

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Plain tees in XS to XXXL and 15 colours, €6.26 each from 5 pieces. Delivered to Ireland and the EU.

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Frequently asked questions

How do I measure my T-shirt size?
Measure your body, not a shirt. Stand relaxed, breathe out normally and wrap a soft tape measure around the fullest part of your chest, under the arms and across the shoulder blades. Keep the tape level and snug but not tight. Compare the result in centimetres with the size chart and choose the larger size if you fall between two.
Do T-shirts run small or large?
It depends on the brand and cut. Classic unisex tees such as Fruit of the Loom's are cut fairly straight and generous, while fitted and ladies' cuts are narrower. Cotton can also shrink slightly in the first washes. Always compare chest measurements rather than the letter size, and choose one size up if you prefer a relaxed fit.
What size split should I order for a group?
If you cannot ask everyone, start with approx. 10 % S, 30 % M, 30 % L, 20 % XL and 10 % XXL for mixed adult groups. Shift towards S and M for younger or mostly female groups, and towards L to XXL for sports teams and work crews. Asking people for their size with a simple form is always more accurate.
Are UK T-shirt sizes different from EU sizes?
Letter sizes like S, M and L are used across the UK and EU, but each brand defines them with its own measurements. That is why the chest measurement in centimetres is the reliable reference. Note that Marmalade Co. delivers to Ireland and 10 EU countries only, and does not currently deliver to the UK.
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