YKK Vislon Closed Zippers
YKK is known for high quality zippers which are used extensively in the outdoor clothing industry.
Vislon teeth are strong durable plastic. Vislon zippers are lighter than metal zippers. They are unaffected by moisture making them a great choice for outerwear applications. Vislon is more durable than nylon coil.
Closed zippers are used for applications where the garment does not fully open, such as a pullover. They can also be used for pockets and other applications such as bag making.
#5 refers to the width of the teeth being 5mm.