Knit fabrics are made by interlocking loops of yarn, which gives them natural stretch and comfort. The knit structure decides how a fabric looks, stretches and wears. Here are the main types and how to choose.
What does GSM mean?
GSM (grams per square metre) is fabric weight. Higher GSM means a heavier, thicker fabric. As a rough guide:
- Light (around 120 to 160 GSM): summer tees, innerwear, linings
- Medium (around 160 to 220 GSM): standard tees, polos, dresses
- Heavy (around 240 GSM and above): sweatshirts, hoodies, joggers
Single jersey
Smooth face, looped back, light and comfortable. The standard fabric for t-shirts, tops and loungewear. See single jersey.
Rib
Vertical ribs that stretch widthways and spring back. Used for fitted tops and for neckbands, cuffs and waistbands. 1x1 rib is fine; 2x2 rib is chunkier. See rib and interlock.
Interlock
Smooth on both sides, thicker and more stable than single jersey, and less prone to curling at the edges. Popular for kidswear, polos and premium tees.
Pique
A textured, honeycomb-like surface that breathes well. The classic polo shirt fabric.
French terry and fleece
French terry has a smooth face and soft loops on the back. Fleece is terry with the loops brushed for warmth. Both are used for sweatshirts, hoodies and joggers. See fleece and terry.
Adding stretch
Any of these can be knitted with Lycra (spandex) for extra stretch and recovery, for fitted and active styles. See stretch fabrics.
Not sure which knit or GSM you need? Tell us about your garment and we will recommend a fabric.