selection · 4 min read

Jersey vs interlock: choosing a knit structure

Both are cotton knits and both are sold by the kilogram. The structural difference decides whether the hem curls, how the fabric prints, and how the garment feels after ten washes.

By Weft Bridge · Reviewed by our Guangzhou sourcing team · Updated 2026-11

The structures

Jersey is a single knit: loops on one face, purl on the other. It is light, stretchy in one direction and curls at the edges, which is why hems need a rib or a double fold.

Interlock is a double knit: two interlocking jersey layers, smooth on both faces, stable and resistant to curling. It is denser and heavier at the same yarn count.

Side by side

	Jersey	Interlock
Faces	Different on each side	Same on both sides
Curl	Curls at the edges	Does not curl
Stretch	More, especially widthways	Less, more stable
Weight at same count	Lighter	Heavier
Print	Good, but texture shows	Smoother base
Best for	T-shirts, lightweight tops	Polos, babywear, heavier tees

What to specify

The structure, not just “cotton knit”.
GSM, with tolerance, on the finished fabric.
Width, and whether the tube is open width.
Shrinkage after the finishing you will use.

FAQ

Is interlock better quality?

It is heavier and more stable, which suits some products. Jersey is the right choice for a light tee.

Why does my jersey hem curl?

That is the structure. It needs a rib, a double fold or a taped seam to control it.