Two-way plastic triangle teeth zipper is particularly strong and retains its colour well.
Ribbon & Rope offers various materials / products for the finishing of outdoor- and sports clothing. The triangle teeth zipper is very strong and therefor often used for clothing that has to endure a lot. The two-way zipper can be (partially) opened at the bottom and the top. You often see this in (long) coats and sportswear to increase freedom of movement.