Coil zippers are a type of zipper made from a continuous coil of plastic or nylon. They consist of interlocking teeth that are flexible, allowing the zipper to bend easily. This design makes coil zippers lightweight and durable, making them popular in various applications, including clothing, bags, and outdoor gear. Unlike metal zippers, coil zippers are less prone to snagging and can be produced in various colors and sizes. They are often used in items like jackets, backpacks, and sleeping bags due to their versatility and ease of use.