Fabric & decoration
Choosing school uniform fabrics: polos, sweatshirts and PE kit
Pick school uniform fabric for durability and easy washing first, comfort second. Piqué in a cotton/polyester blend is common for polos, French terry or fleece for sweatshirts, and jersey or interlock for PE kit. Pre-shrinking, colour fastness, soft labels and no hood drawstrings on children's garments count for as much as the fabric.

Key takeaways
- Polos are usually piqué at 200–260 GSM with a flat-knit collar.
- Sweatshirts are French terry or brushed fleece, typically 320–400 GSM (up to 480).
- Cotton/polyester blends are often chosen because they are easier to care for and hold colour better.
- Pre-shrunk fabric plus a wash test on samples keeps shrinkage under control.
- Hood and neck drawstrings on children's clothing are restricted in key markets.
Parents buy school uniforms expecting them to last, and the garments get washed constantly and worn hard. The right fabric keeps them looking decent through the school year and cuts down on complaints. Here is how to choose for the core pieces.
What school uniform fabric must do
A uniform fabric has to survive frequent washing without much shrinking, fading or pilling. Collars should sit flat and cuffs should recover. The garment has to be comfortable for a full day in class and at play, and new pieces should match old ones from year to year. Construction and trims also need to be safe for children.
Fabric choices by garment
| Garment | Common fabric | Typical GSM | Why |
|---|---|---|---|
| Polo shirt | Piqué, cotton or cotton/polyester | 200–260 | Structured, breathable, good for embroidered crests |
| Sweatshirt / cardigan-style top | French terry or brushed fleece | 320–480 | Warmth; terry for heated rooms, fleece for cold climates |
| PE T-shirt | Single jersey, cotton or blend | 180–260 | Light, easy to print with house colours |
| PE shorts / joggers | Interlock, terry or jersey | varies | Comfort and stretch for movement |
For more on the main fabrics, see piqué vs jersey polo shirts, French terry vs fleece and the knit fabric and GSM guide.
Cotton or a cotton/polyester blend
| 100% cotton | Cotton/polyester blend | |
|---|---|---|
| Hand feel | Soft, natural | Smooth, slightly less soft |
| Shrinkage | Needs good pre-shrinking | Usually lower |
| Colour retention | Can fade with frequent washing | Usually holds colour better |
| Creasing | Creases more | Creases less |
| Drying | Slower | Faster |
Many programmes pick a blend for polos and sweatshirts because families find it easier to look after. Some prefer cotton for the feel. Both work when the fabric is properly finished and tested.
Durability and washing
Ask for pre-shrunk fabric and a wash test on the pre-production samples. Our guide on why knit garments shrink explains the causes. School colours such as navy, bottle green and maroon should be tested for fastness to washing.
Pilling shows up mostly on fleece sweatshirts, so agree a pilling test if it matters to you. Flat-knit polo collars and rib cuffs should keep their shape after washing. For crests, a stable fabric and suitable backing keep the embroidery flat; see print vs embroidery.
Child safety details
For children’s garments, construction and trims matter as much as the fabric. We do not make health or medical claims about fabrics, so the points below are practical ones.
- No hood or neck drawstrings in markets that restrict them. The Drawstring Safety Checker helps here.
- Buttons and trims attached so they do not come loose easily.
- Chemical compliance, for example CPSIA in the US and REACH in the EU. See US apparel import compliance and EU and UK apparel compliance.
- Soft, permanent labels that will not irritate the neck. See care labels and symbols.
A buyer’s checklist
- Define the garments, climate and how each will be worn.
- Choose fabric, GSM and blend for each garment.
- Approve a physical colour standard for each school colour.
- Wash-test pre-production samples for shrinkage, colour and pilling.
- Confirm drawstring, trim and chemical rules for your market.
- Plan sizes and re-orders; see uniform size run planning.
Final thoughts
The best school uniform fabric is the one that still looks right after a year of washing. Start with piqué polos and terry or fleece sweatshirts, pick a blend that suits how families wash, and test samples before bulk. See our school uniform solutions and send us your garment list for fabric and sample suggestions.