Fabric is cloth or other material produced by weaving together cotton, nylon, wool, silk, or other threads. Fabrics are used for making things such as clothes, curtains, and sheets. The fabric of a society or system is its basic structure, with all the customs and beliefs that make it work successfully. Fabric is cloth or other material produced by weaving together cotton, nylon, wool, silk, or other threads. Fabrics are used for making things such as clothes, curtains, and sheets.