Seat liners are protective coverings designed to fit over the seats of vehicles, such as cars, trucks, and airplanes. They help keep the seats clean and free from spills, stains, and wear. Made from various materials, including fabric and plastic, seat liners can be easily removed and washed, making them a practical choice for families, pet owners, and frequent travelers. In addition to protecting seats, seat liners can enhance comfort by providing extra cushioning. Some liners are designed with non-slip features to keep them securely in place during use. They come in various styles and colors, allowing users to personalize their vehicle interiors while maintaining cleanliness.