Cotton vs Polyester T-Shirts: Which Fabric Is Better for Custom Apparel?
When you start sourcing blank t-shirts for a custom apparel line, the first decision isn’t color, fit, or even price. It’s the fiber on the label. Cotton and polyester behave differently under a print head, an embroidery needle, a heat press, a washing machine, and the weather — and those differences shape how your finished product looks after one month and after one year.
This guide breaks down how cotton and polyester perform across the variables that actually matter to a brand or buying team: hand-feel, decoration compatibility, durability, cost, sustainability, and end-use. By the end, you should be able to pick the right fabric for your next collection without guessing.
How Cotton and Polyester Behave as Apparel Fabrics
Cotton is a natural cellulosic fiber harvested from the cotton plant. The most common apparel-grade cottons — ring-spun, combed, and Supima — are prized for their softness, breathability, and ability to absorb liquid. That absorbency is why cotton takes dye so well, and why it feels cooler against the skin in hot weather. It is also why cotton wrinkles, shrinks if pre-shrunk treatments are skipped, and dries slowly.
Polyester is a synthetic fiber made from PET (the same polymer used in plastic bottles). Modern apparel polyester is engineered as a continuous filament that is then texturized to feel softer and more cotton-like. It is hydrophobic, which means it pushes water away rather than absorbing it. That single property is responsible for most of polyester’s reputation: quick-drying, wrinkle-resistant, strong when wet, and prone to pilling and static if the yarn quality is low.
Most production t-shirts sold today are not 100% of either fiber. They are blends — typically 65/35 or 50/50 poly-cotton, sometimes with a small percentage of spandex or rayon added. Blends combine cotton’s hand-feel with polyester’s strength, but they also blend the weaknesses. Understanding the pure fibers first makes it easier to evaluate the blends.
Side-by-Side Comparison
The table below summarizes the most important differences for custom apparel buyers. The numbers are typical values for mid-range blanks at the 180–200 GSM weight class; premium or budget fabrics will vary.
| Property | 100% Cotton | 100% Polyester | 50/50 Blend |
|---|---|---|---|
| Hand-feel | Soft, natural, breathable | Smoother, slicker, slightly slick | Soft with more body |
| Moisture management | Absorbs sweat, slow to dry | Wicks sweat, fast to dry | Moderate |
| Print compatibility | Excellent for all methods | Good for sublimation, DTG; tricky for discharge | Excellent for screen print, DTG, DTF |
| Embroidery | Excellent loft and stability | Good, but can pucker on knits | Excellent |
| Shrinkage | 3–5% if not pre-shrunk | Negligible | 1–3% |
| Wrinkle resistance | Poor | Excellent | Good |
| Durability (wear cycles) | 30–50 washes before thinning | 50–100+ washes | 50–80 washes |
| Cost (180 GSM, blank) | $$ | $ | $$ |
| Sustainability | Renewable, biodegradable | Petroleum-based, not biodegradable | Mixed |
| Best climate | Hot, dry, casual | Cool, humid, athletic | All-purpose |
The fabric you choose directly affects which decoration methods are practical. Picking the wrong fabric is the single most common reason custom apparel orders fall short of the sample.
Screen Printing
Screen printing on 100% cotton is the industry baseline. The inks are plastisol or water-based and bond cleanly to the cellulosic fibers, producing bright, opaque colors with sharp edges. Discharge screen printing — which bleaches the dye out of the fabric and replaces it with the ink color — only works on cotton because polyester doesn’t take the discharge agent.
Screen printing on 100% polyester requires dye-migration-resistant (DMR) inks. Without them, the dyes in the polyester will bleed into the print, especially under the heat of a curing press, leaving a faded or tinted finish. DMR inks cure at lower temperatures and are formulated to block dye migration, but they still require careful press setup.
Blends at 50/50 or 65/35 poly-cotton are the easiest to print. They behave like cotton for ink adhesion and like polyester for stability, so standard plastisol inks work without modification.
Direct-to-Garment (DTG)
DTG printers deposit water-based ink into the top fibers of the fabric. The ink sits on top of cotton beautifully, soaking slightly into the natural fibers and producing a soft print that breathes. On polyester, the same ink sits on the surface and can crack or fade faster, especially on dark garments that require a pre-treatment layer.
Pre-treated poly-cotton blends and modern DTG printers with poly-specific ink sets have closed the gap significantly, but for the softest, longest-lasting DTG print, 100% cotton still leads.
Dye Sublimation
Dye sublimation is the opposite of DTG: it only works on polyester. The dye turns into a gas under heat and pressure and bonds with the polyester fiber at the molecular level. The result is a fully dyed print that doesn’t sit on top of the fabric — it becomes part of it. There is no hand-feel change, no cracking, and the color is permanent.
For all-over-print apparel, sportswear, and any design with photographic detail, sublimation on 100% polyester (or a high-poly blend) is the only practical option.
Heat Transfer and DTF
Heat-applied transfers — including DTF (direct-to-film) — work on both fibers, but the look and longevity differ. On cotton, the adhesive layer can feel stiff and tends to crack with repeated washing. On polyester, the transfer bonds well but can trap heat and moisture, making the print area feel clammy.
For short-run, full-color designs on either fiber, DTF is now the most flexible option. For long-wearing workwear or uniforms, screen printing on a blend remains the most cost-effective.
Embroidery
Embroidery is essentially fiber-agnostic. A good digitizer will adjust the underlay and stitch density based on the fabric weight and stretch, but the fiber itself has little impact. Polyester polos, cotton caps, poly-cotton team shirts — all embroider well. The only fabric to avoid is very thin, stretchy knits, which let the embroidery distort the surrounding fabric.
Cost and MOQ: What You Actually Pay
Price per blank varies by region, season, and cotton futures, but a 2026 reference for an order of 500–1000 pieces in the 180–200 GSM weight class looks roughly like this:
| Fabric | 100% Cotton | 100% Polyester | 50/50 Blend |
|---|---|---|---|
| Blank t-shirt (180–200 GSM) | $3.20 – $4.50 | $2.80 – $3.80 | $3.20 – $4.20 |
| Pre-production sample | $5 – $10 + shipping | $5 – $10 + shipping | $5 – $10 + shipping |
| Setup per color (screen print) | $20 – $40 | $25 – $45 (DMR) | $20 – $40 |
| Setup (DTF) | $0 – $5 | $0 – $5 | $0 – $5 |
| Setup (embroidery) | $0 – $5 | $0 – $5 | $0 – $5 |
The blank price gap is smaller than most buyers expect. At 500 pieces, the per-shirt cost difference between 100% cotton and 100% polyester is often less than $1, which is rarely the deciding factor on its own. The deciding factor is almost always decoration cost, decoration durability, and end-use fit.
For sublimation on polyester, you also need to factor in the paper, ink, and press-time cost per piece. For DTG on cotton, factor in pre-treatment and white-ink underbase. These small per-piece costs add up on long runs.
Durability and Wash Performance
Cotton softens with washing. Polyester holds its shape but pills and develops a sheen. A well-made 100% cotton t-shirt at 200 GSM will look nearly new after 20 washes and show visible wear after 50. A mid-grade 100% polyester tee will look almost identical after 100 washes, but the surface will have a slight fuzz and any print will have thinned where the fabric flexed most.
For uniforms, sportswear, and event shirts that will be washed weekly, poly-cotton blends are usually the best balance — they keep cotton’s hand-feel but add enough polyester to resist shrinking and hold prints longer.
If your brand’s quality promise includes a “won’t shrink, won’t fade” guarantee, lean toward polyester or a high-poly blend with reactive-dyed yarns. If the brand promise is “the softest tee you’ll own,” lean toward ringspun or combed cotton at 200+ GSM.
Comfort, Climate, and End-Use
Cotton breathes. The fiber structure allows air to pass through, which is why a 100% cotton tee in July feels lighter than the same weight in polyester. Polyester doesn’t breathe as well, but it wicks moisture away from the skin, which is why performance apparel is almost always polyester or a poly-rich blend.
End-use logic:
- **Resort and lifestyle brands** → 100% cotton or cotton-rich blend. Customers expect the natural hand-feel.
- **Sports, fitness, and outdoor** → 100% polyester or poly-rich blend with moisture-wicking finish.
- **Corporate uniforms and hospitality** → 65/35 poly-cotton. Easy to launder, holds embroidery, holds screen print, looks crisp after industrial washing.
- **Event merchandise and giveaways** → 50/50 or 100% cotton, depending on budget. Cotton prints brighter, polyester travels better in a shipping bag.
- **Fashion and streetwear** → 100% cotton at 220+ GSM for premium feel, or 100% polyester for sublimation-driven all-over prints.
- **Retail basics** → Often both, in a coordinated collection. The customer chooses.
- **Sourcing on price per piece alone.** The cheapest blank often costs the most when the print fails, the fabric pills, or the order has to be re-run.
- **Skipping the pre-production sample.** Always request a strike-off or sample of the decorated fabric, not just the blank. The decoration is what the customer sees.
- **Picking a fabric your printer doesn’t specialize in.** A screen-printing shop that runs 90% cotton may not have the DMR inks to do justice to a polyester order. Match your fabric to your printer’s strengths, or find a printer who can handle both.
- **Ignoring shrinkage specs.** A 5% shrink on a size L tee moves a size L into size M territory. Ask for the after-wash dimensional spec before placing the order.
- **Confusing GSM with quality.** Heavier isn’t always better. A 220 GSM open-end cotton tee is rougher than a 180 GSM ringspun cotton tee. Construction method (ringspun, combed, air-jet) matters as much as weight.
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Sustainability and Sourcing Considerations
Cotton is renewable and biodegradable. The downsides are water use, pesticide use (depending on conventional vs. organic), and the social issues tied to conventional cotton supply chains. OEKO-TEX and GOTS certifications are the most widely recognized ways to verify that a cotton fabric is safe and responsibly produced.
Polyester is petroleum-based and not biodegradable, but it can be made from recycled PET bottles (rPET). Recycled polyester has roughly half the carbon footprint of virgin polyester and is now widely available at scale from major mills. For brands making a sustainability claim, rPET is a defensible choice.
Blends are the trickiest on sustainability: the two fibers can’t be separated during recycling, so blended fabrics almost always end up downcycled or in landfill. For circular-economy claims, choose 100% of one fiber.
Common Buying Mistakes
How to Choose: A 5-Step Process
1. **Define the end-use.** Is this for screen printing, sublimation, embroidery, or retail? Each use case has a fabric sweet spot.
2. **Set the hand-feel target.** Hold a sample of the same fabric at the same weight from two suppliers. The one that feels closer to your brand’s quality promise wins.
3. **Run a decoration test.** Print or embroider 3–5 samples of the chosen fabric and wash them 5 times. Inspect for color shift, cracking, pilling, and shrinkage.
4. **Confirm the supply chain.** Check the mill, the country of origin, and the certifications. Ask for the OEKO-TEX or GOTS certificate by name, not a verbal claim.
5. **Negotiate the MOQ realistically.** A 500-piece MOQ is more expensive per piece but lets you test before committing. A 5000-piece MOQ drops the per-piece cost but ties up capital in inventory you haven’t validated.
Frequently Asked Questions
Is 100% cotton or 100% polyester better for screen printing?
100% cotton is the easiest to screen print and produces the brightest, most consistent results with standard plastisol or water-based inks. Polyester is printable but requires dye-migration-resistant inks and tighter press control.
Which fabric is more sustainable?
It depends on the supply chain. GOTS-certified organic cotton is widely considered the gold standard for natural fibers. Recycled polyester (rPET) made from post-consumer bottles is the most defensible option for synthetics. Blends are the hardest to recycle at end-of-life.
What GSM should I choose for a custom t-shirt?
For most custom apparel, 180–200 GSM is the practical sweet spot — substantial enough to feel premium, light enough to print and embroider easily. Premium fashion lines often go to 220–250 GSM; lightweight giveaways may go to 150–160 GSM.
Can I sublimate on cotton?
Not directly. Sublimation dye only bonds with polyester. For a similar look on cotton, use DTF or DTG with a white underbase. For a cotton-rich tee with an all-over sublimated look, the closest options are poly-cotton blends (60%+ poly) or a polyester face with a cotton back.
How do I avoid shrinkage in a custom order?
Pre-shrunk or pre-laundered cotton blanks will hold their size through repeated washes. Ask your supplier for the after-wash dimensional change spec — a well-made 100% cotton tee at 180+ GSM should change less than 3% in length and width after 5 washes.
Conclusion
There is no universally “better” fabric — only the right fabric for the job. Cotton wins for screen printing, retail basics, and a natural hand-feel. Polyester wins for sublimation, performance, and laundry durability. Blends sit comfortably in the middle and are the default for uniforms, hospitality, and event merchandise.
If you’re starting a new collection, run a small decorated sample of each fabric before committing to a 1000-piece order. The hour you spend on that test saves weeks of rework later.
For wholesale blank cotton, poly-cotton, and 100% polyester t-shirts ready for screen printing, DTG, DTF, sublimation, or embroidery, browse our apparel collection or request a quote with your spec sheet.
