If the zipper on a jacket breaks and needs to be replaced, it can be difficult to sew in a new one. This is especially true if the jacket is lined
Replace a jacket zipper (without unraveling) - iFixit Repair Guide
Replace a jacket zipper (without unraveling) - iFixit Repair Guide
How to fix a zipper on jackets (no sewing)
Coil Zipper Diagnosis - iFixit Repair Guide
A Field Guide To Repairing Your Gear - Voile
How to Fix a Zipper
Replace a jacket zipper (without unraveling) - iFixit Repair Guide
Replace a jacket zipper (without unraveling) - iFixit Repair Guide
Zipper Rescue Zipper Repair Kits – The Original Zipper Repair Kit, Made in America Since 1993