Commonly called a chunky zipper, this type of zip is more accurately described as a plastic molded zipper as the teeth are made by injecting plastic into a mold to give them their specific shape.

The teeth are then fastened to the zipper tape to form the finished zip. This type of zip is popular in fashion where the chunky look and smooth finish is a desired part of the design.

Chunky zippers are manufactured based on their gauge, but this is done mostly to allow size comparison between the different types of zippers.