Jersey is a knit fabric used predominantly for clothing manufacture. It was originally made of wool, but is now made of wool, cotton, and synthetic fibers.

Since medieval times, Jersey, Channel Islands (archipelago in the English Channel), where the material was first produced, had been an important exporter of knitted goods and the fabric in wool from Jersey became well known.

In 1916, Gabrielle "Coco" Chanel upset the fashion industry by using jersey at a time when it was strictly associated with underwear.

The fabric can be a very stretchy single knitting, usually light-weight, jersey with one flat side and one piled side. When made with a lightweight yarn, this is the fabric most often used to make T-shirts.

Or it can be a double knitted jersey (interlock jersey), with less stretch, that creates a heavier fabric of two single jerseys knitted together to leave the two flat sides on the outsides of the fabric, with the piles in the middle. Interlock jersey is sometimes used as a more formal alternative knit to the traditional piqué knit for polo shirts, and is generally the preferred knit for those made from pima cotton.

Jersey is considered to be an excellent fabric for draped garments, such as dresses, and women's tops.

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