COA: 77.77 GBp
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Casa • Industry FAQs • Why are sewn coil zips sometimes called nylon zips?

Previously these zips may have been made from a range of manmade materials like nylon, polyester, polypropylene, poly butyl phthalate (PBT). Nylon was a common material used for zips due to its smoother feel and so this remained as a name for this category of zips.