Yes, folding knives can be used to cut fabric. However, the effectiveness of a folding knife for cutting fabric may depend on the specific design, sharpness, and size of the blade. Some folding knives have specialized blades designed for cutting various materials, including fabric. These blades often have a serrated or partially serrated edge that can grip the fabric and make cutting easier. Its important to note that using a folding knife for fabric cutting requires caution and precision to avoid any accidents or damage to the fabric. It may be more ideal to use fabric scissors or rotary cutters specifically designed for cutting fabric, as they provide better control and precision.