Fabric guide
The blend ratio that dominates uniform and workwear, what each fibre contributes, and when a different ratio is the better answer.
In short
65/35 poly-cotton means 65% polyester and 35% cotton. The polyester carries tensile strength, shrinkage control, colour retention and fast drying; the cotton carries breathability, comfort against the skin and the ability to take certain finishes. The ratio is the common default in workwear because it holds up to repeated industrial laundering while remaining wearable for a full shift.
6 min read
Reviewed by AHM International product development team
Last reviewed August 2026
What each fibre contributes
| Property | Polyester | Cotton |
|---|---|---|
| Tensile and abrasion strength | High | Moderate |
| Shrinkage after washing | Low | Higher, needs control |
| Colour retention | Good. Dyes are locked into the fibre | Fades sooner, especially at high temperatures |
| Breathability | Lower | Higher |
| Moisture absorption | Low. Dries fast, can feel clammy | High. Absorbs, dries slowly |
| Comfort against skin | Lower | Higher |
| Stain release finish uptake | Good | Good |
| Cost stability | Tied to petrochemical prices | Tied to agricultural cycles |
Why 65/35 rather than 50/50 or 80/20
The ratio is a trade between durability and comfort, and 65/35 sits at the point where most uniform programs get enough of both. Above roughly 65% polyester, wash durability improves only marginally while breathability and hand feel decline noticeably. Below it, shrinkage control and colour retention start to become program problems.
It is not a rule. An 80/20 blend makes sense where laundering is aggressive and the garment is worn over another layer. An outer work shirt in an industrial laundry cycle, for instance. A cotton-rich blend makes sense where the garment sits against the skin in heat, and where the program accepts shorter service life in exchange.
The deciding question is usually not comfort versus durability in the abstract, but how the garment is washed. Industrial laundering at high temperature with strong chemistry is the single factor that pushes a specification toward polyester.
Where 65/35 is typically specified
- Bib and waist aprons
- High soiling and frequent washing. The blend takes a stain-release finish and holds colour through the cycle.
- Work shirting
- Twill or poplin construction, where crease recovery and colour retention both matter.
- Work trousers
- Usually at a heavier weight, often with reinforcement rather than a heavier blend.
- Chef wear
- Where whiteness retention through industrial laundering is the defining requirement.
Weight, and why heavier is not automatically better
Poly-cotton workwear is commonly specified between roughly 195 and 280 gsm. It is tempting to treat the top of that range as the safe choice, but weight carries three costs: fabric price, reduced breathability, and freight. A heavier garment is a heavier carton.
Durability in service usually depends more on reinforcement placement than on overall weight. Bar tacks at pocket mouths and strap attachments, and a gusset where the work involves kneeling or climbing, extend service life more effectively than adding thirty grams across the whole garment.
The useful approach is to specify weight for the wear environment and spend the remaining budget on reinforcement where the garment actually fails.
On stain-release finishes
A stain-release finish is applied to the fabric and reduces how readily soil bonds to the fibre, so more of it lifts in washing. It is a fabric property rather than a construction one, and its durability across wash cycles varies by finish. Where a program depends on it, confirm it by testing against your actual laundering method rather than treating it as permanent.
Related questions
TC (Tetron Cotton) generally describes polyester-dominant blends such as 65/35, so the terms overlap. CVC (Chief Value Cotton) means the blend is cotton-dominant, typically 60/40 cotton to polyester. If a specification says CVC, expect a softer, more breathable and less wash-stable fabric than 65/35.
Less than cotton, but not zero. The cotton component still moves, and shrinkage behaviour should be confirmed against the program's actual wash method during development, particularly where industrial laundering is involved.
Yes. Polyester-rich fabrics can cause dye migration into a print if the wrong ink system is used, which shows up as discolouration weeks later. This is why a strike-off should be produced on the bulk fabric rather than on a similar swatch.
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