A couch protector, also known as a slipcover, is a removable piece of fabric that is placed over a couch or other furniture to protect it from dirt, dust, and wear. Slipcovers are usually made of washable fabrics such as cotton, linen, or polyester, and come in a variety of colors and styles. They are an easy and cost-effective way to update the look of a room without having to buy new furniture.