Which style of zipper do you need to fix?

Coats / jackets

Open separating zipper

Closed separating zipper

Sweatshirts

Lifejackets

2 sliders, most common on sleeping bags and coats.

Zipper separates fully at the bottom

Sleeping bag example

Sweatshirts

Long coats

Backpacks or luggage with 2 sliders

Pants

Purses or bags with only 1 slider

Pull over shirts with partial zippers. Top is open, bottom is closed. Boots are the same style

Tents, canvas bags, briefcases

Coat or purse pockets