How to choose a knitted fabric for a product: a practical guide for clothing brands

The best way to choose a knit is to start with the garment, not the fabric name. T-shirts, sweatshirts, pyjamas, babywear and sportswear have different requirements for hand, stretch, weight and behaviour after washing. A well-matched fabric makes garment construction easier, improves comfort and helps keep later production batches consistent.

First ask what the fabric will become. A lightweight T-shirt usually needs a soft, breathable material that drapes well. A sweatshirt may need more body, warmth and stability. Children's garments call for particular attention to hand feel, composition, finish and safety requirements.

Also define the season, target customer, how the garment will be used and how often it is expected to be washed. This narrows the options and reduces the risk of choosing a fabric that looks right as a swatch but does not work in the finished collection.

Single jersey is a versatile option for T-shirts, pyjamas, dresses and lightweight children's clothing. Interlock has a denser, more stable construction, so it is often used when a smooth face on both sides and a fuller hand are important.

Loopback sweatshirt fabric works well for hoodies, trousers and everyday sets; a brushed reverse gives a warmer, softer feel. Rib knit is mainly used for fitted details such as cuffs, waistbands and necklines. If the design needs more stretch, consider an elastane blend.

There is no single best construction. The right choice is the one that suits the garment and the wearer.

Cotton offers a natural hand and wearing comfort. Elastane improves stretch and recovery. Synthetic fibres can support durability or other performance requirements in sports and technical collections.

Composition is only part of the picture: finishing matters too. Two fabrics with a similar fibre blend may behave differently after dyeing, stabilisation, brushing or softening. Before ordering a larger batch, assess a sample after the processes planned for production.

Weight describes the mass of fabric per square metre, but it does not tell the whole story. Construction, width, density, stretch and finishing also matter. A lightweight knit can be dense and opaque, while a heavier one can drape softly.

Set a target weight range, then check the sample for opacity, drape, curling and cutting behaviour. This is particularly important when weight affects fabric yield and garment-making costs.

Dyeing, stabilisation, softening, brushing, printing and other processes can change the appearance and parameters of a knit. The sooner you define the expected hand, colour, shrinkage and durability, the easier it is to choose a suitable production route.

For a B2B enquiry, share the intended use, composition, target weight range, width, colours, finish and product requirements. This gives the technical discussion a clear starting point rather than relying on the fabric name alone.

Where possible, put the sample through steps similar to the finished production. Check it after washing, drying, cutting and sewing. Look at:

• changes in dimensions;
• colour stability;
• stretch and recovery;
• tendency to twist or curl;
• hand feel and surface appearance.

Choose a knitted fabric for the function of the finished product, not just because a particular name is popular. Construction, composition, weight, width and finishing should be considered together. Working with a manufacturer at the design stage helps define the parameters, prepare the right sample and reduce the risk of variation between batches.