Comic book sleeves are protective covers designed to keep comic books safe from damage. Made from materials like polyethylene or mylar, these sleeves help prevent wear and tear, such as creases, tears, and fading. They come in various sizes to fit different comic book dimensions, ensuring a snug fit. Using comic book sleeves is essential for collectors and enthusiasts who want to maintain the value and condition of their comics. By storing comics in sleeves, owners can protect them from dust, moisture, and handling, which can all contribute to deterioration over time.