A coil zipper is made of spiral plastic elements, such as polyester or nylon. This is the most popular zipper among the three types of zippers. This versatile zipper can be used in anything from apparel garments to luggage or sporting goods to automobiles. Expand your possibilities with our coil zipper. YKK's perfect zipper for medium weight jacket zipper and more. These zippers are thoroughly tested for strength and durability.