Symptoms
- Zipper won't move up or down
- Fabric bunched at the slider
- Slider stuck halfway
- Tugging makes it worse
Likely causes
- CommonFabric or thread pinched in the sliderThe slider teeth grab loose fabric and jam.
- PossibleZipper slider misaligned on the trackA crooked slider can bite into the lining.
- PossibleRust or dirt buildup on the teethOld zippers accumulate grime that increases friction.
- Less commonBent zipper toothA single bent tooth blocks the slider's path.
What to do
- Stop pulling as soon as it sticks; forcing it tears fabric or bends teeth.
- Look closely at the slider to find exactly where fabric is caught.
- Gently pull the caught fabric sideways, away from the teeth, while holding the slider still.
- If it won't budge, use a pin or tweezers to tease the threads free one at a time.
- Once the fabric is loose, work the slider slowly in the direction it was already moving.
- Rub a pencil graphite, candle wax, or a bit of soap along the teeth to help it glide.
- Test by running the zipper fully open and closed a few times.
Tools and parts
- Tweezers or pin
- Pencil or bar of soap (optional)
When to call a pro
If the teeth are bent or torn away from the fabric, a tailor or shoe/luggage repair shop can replace the zipper.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.