Different materials of zip

Generally, the overcase is required for folding umbrella production. It is not only for visual effect but also to avoid the backpack getting wet when putting umbrella into it. The following will introduce the zipper material.

※ Zipper
By material
(1) Coil Zipper: mostly made of nylon. The shape of the zipper teeth is shown in the diagram. The zipper is popular in custom umbrella because it is cheaper than others. 

(2) Metal Zipper: Common colors are bronze, silver, nickel, and gold, etc.

(3) Plastic Zipper: It is injected with a harder material and implanted on the zipper tape. The zipper teeth have strong lateral pull & high resistance to UV rays.