Once you know how to fix a zipper, you can make a 2-way zipper.

Note: A separating zipper can be made into a closed end zipper, but a closed end zipper cannot be made into a separating zipper.

Step 1
Repairing a zipper 1

Step 2
Repairing a zipper 2

Step 3
Repairing a zipper 3

Close-up
Repairing a zipper close-up

Step 4
Repairing a zipper 4

2-Way Zipper
zip2way

(Commenting: OFF)