Nylon Coil – The Nylon Coil Zipper is made exactly how it’s named. There’s a nylon monofilament that is “coiled” to form the teeth. It’s then sewn on to the zipper tape to make the final zipper product. Nylon Coil zippers are the zippers of choice for the outdoor and luggage industry. Tents, backpacks, suit cases, and camping apparel, you’ll most likely find nylon coil zippers. With the construction of the nylon coil zipper, it lends itself to have a stronger horizontal strength. We’ve all stuffed our luggage a bit too much and that zipper holding the suit case from exploding is a nylon coil zipper. Nylon coil zippers are also pretty easy to repair, should a tooth get out of alignment. The nylon monofilament can easily correct itself by zipping and unzipping past the point where the tooth is misaligned and most times it will fix itself. Another thing to note is that with nylon coil zippers, the sliders can be put on the zipper chain either direction and the zipper will still function.