Cotton vs Polyester: Which Fabric Is Right for Your Custom Apparel?

Cotton or polyester is the first real decision in any custom apparel order, and it quietly determines most of the others. It sets how the garment feels, how it handles sweat, how much it shrinks, how long the print lasts, and which printing methods are even available to you. Get it right and everything downstream gets easier. Get it wrong and no amount of good printing will save the garment.

This guide compares the two fibres honestly, including the cases where the popular answer is wrong, and explains what blends actually do.

What they actually are

Cotton is a natural fibre grown as a seed hair. Each fibre is a short, slightly twisted, hollow tube of cellulose. That hollow structure is why cotton absorbs water readily and why it feels cool and soft against skin.

Polyester is a synthetic fibre extruded from polymer as a continuous filament. The filament is smooth and solid, and it does not absorb water into the fibre itself — moisture travels along the surface instead. That single difference explains almost everything else about how the two behave.

Comfort, sweat and climate

The common claim is that polyester is for sport and cotton is for everything else. That is close to right, but for a reason worth understanding.

Cotton absorbs sweat. In light use that feels pleasant — the fabric takes the moisture away from the skin and the evaporation cools you. In heavy use it becomes a problem: once cotton is saturated it stays wet, gets heavy, clings, and stops cooling. A cotton shirt after an hour of football is a wet shirt for the rest of the day.

Polyester does not absorb. Sweat spreads across the fibre surface and across the fabric, where a large surface area lets it evaporate quickly. That is what “moisture-wicking” means in practice: not that the fabric drinks the sweat, but that it refuses to and spreads it out to dry. The trade-off is that polyester feels less pleasant at rest, holds odour more stubbornly, and can feel clammy in humid heat when there is no air movement.

Shrinkage, wrinkles and holding shape

This is where polyester quietly wins and where cotton costs you money on a bulk order. Cotton fibres swell when wet and relax when heated, so untreated cotton knit shrinks on its first hot wash — and it keeps creasing for the rest of its life. Polyester does neither: it does not absorb water, so it does not swell, and it holds the shape it was set in.

On a numbered team kit or a staff uniform, where sizes have to still fit in six months, that stability is worth real money. Pre-shrunk and compacted cotton closes much of the gap, but never all of it.

Printing: the decision that cannot be undone

If the garment is going to be decorated, the fibre choice limits your methods before you have chosen a design. This is the part people discover too late.

Sublimation only works on polyester. The process turns dye into gas and bonds it into the polyester polymer itself, which is why a sublimated jersey has no feel to the print at all and never cracks. Cotton has nothing for that dye to bond to, so sublimation on cotton washes straight out. There is no workaround.

DTG wants cotton. Direct-to-garment inks are water-based and designed to bond to cellulose fibres. On polyester the same print looks dull and sits on the surface. Screen printing works on both but needs different inks and lower temperatures on polyester, because polyester scorches and glazes under heat. Our full comparison of garment printing methods goes into each one.

The short version: if the design is an all-over print or a full sublimated jersey, you need polyester and the fibre decision is already made. If the design is a photographic front print on a retail tee, you need cotton.

What blends actually do

A cotton-poly blend is not a compromise in the negative sense — for a lot of jobs it is the correct answer. You are buying polyester’s stability and drying speed and keeping some of cotton’s hand feel and printability. What you lose is the best of either extreme: a blend never feels as good as fine cotton next to the skin, and never performs as well as full polyester in sport.

The one blend to think twice about is 50/50 when the garment is being printed. It sits exactly between the two print technologies: DTG comes out muted because only half the fibres take the ink, and sublimation comes out faded for the same reason. If a 50/50 is right for the garment, choose screen print or vinyl and it is a non-issue.

Which should you choose?

Decide from the use, then let the use dictate the print method rather than the other way around.

Cost, care and longevity

Price depends far more on fibre quality, yarn and weight than on which of the two you pick. A fine combed cotton costs more than basic polyester; a technical performance polyester costs more than basic cotton. Comparing “cotton versus polyester” on price alone is not a meaningful comparison.

On care, the rules diverge in one important way: polyester cannot take heat. Hot washing, a hot dryer or a hot iron will glaze, shine or melt it, and that damage is permanent. Cotton tolerates heat but shrinks with it. In both cases a cold wash and a low dry is the safe answer, which conveniently is also the answer that protects the print.

Frequently asked questions

Is cotton always more comfortable than polyester?

At rest, usually yes. During exercise, usually no. Cotton is more pleasant to wear while dry and worse than polyester once it is soaked, because it stays soaked. Comfort is situational, not a fixed property of the fibre.

Which lasts longer?

Polyester, as a fibre. It is stronger, resists abrasion better and holds colour and shape longer. Cotton garments usually fail by thinning, stretching and fading; polyester garments usually fail by pilling or by someone washing them too hot. For a garment that will be worn and washed several times a week, polyester content extends its life.

Can I print a full-colour photo on polyester?

Yes, with sublimation, and the result is excellent — no feel, no cracking, edge to edge if you want it. What you cannot do well is DTG on polyester. So the fibre does not stop you printing a photograph; it changes which process you use to do it.

What about microplastics and the environmental side?

Both fibres have real costs and we would rather not pretend otherwise. Cotton is a natural fibre and biodegrades, but it is water- and land-intensive to grow. Polyester is petroleum-derived and sheds synthetic microfibres in the wash, but it lasts longer, which means fewer replacement garments. Recycled polyester reduces the raw-material impact but not the shedding. There is no clean winner, and any supplier who tells you there is has simplified it for you.

Is a blend a cop-out?

No. For uniforms, event shirts and anything washed constantly, a blend is often the best engineering answer rather than a compromise. The only case where a blend genuinely costs you is sublimation and DTG, where a 50/50 gives a weak result in both directions.

How do I know what a supplier is actually giving me?

Ask for the fibre split as a percentage, the weight in gsm, and the finish — and ask them to put it in writing on the quote. “Premium cotton” is not a specification. “100% combed ring-spun cotton, 190 gsm, pre-shrunk” is. The T-shirt fabric guide lists the six things worth specifying.

Which do you recommend for a custom order?

It depends on the garment, which is why we ask rather than default. Tell us how it will be worn and how it is being printed, and the fibre follows from those two answers. You can set the fabric directly in the Custom Lab, and we will flag it if your fabric and your print method do not fit together.

Related: T-shirt fabric guide, hoodie fabric guide, and GSM and fabric weight explained.

Polyester makes one process possible that cotton cannot touch: sublimation printing for sports jerseys.

For a worked example of the fibre choice in extreme heat, see choosing cricket kit fabric for hot weather.