How to repair a boot zipper using ZlideOn
A boot zipper that gapes open at the ankle or refuses to climb past the calf is nearly always a worn slider, not a dead pair of boots. Replacing it takes a couple of minutes and saves a cobbler's bill that often runs to more than the boots are worth.
Get the right ZlideOn for your boots
First things first! Check the number printed on the back of your old slider, or measure the width of the zipper teeth, and pick the ZlideOn that matches. Boot zippers take a lot of strain, so they tend to run heavier than clothing — size 10 is common on tall and riding boots, with narrower coil zippers on ankle boots.
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Carefully snap off the broken slider
Grip the old slider with a pair of pliers and snap it off the top of the boot zipper. Stand the boot upright and hold the shaft steady — leather and the stiff lining behind it give you less flex than fabric does.
Fully open your ZlideOn
Hold the ZlideOn between your fingers and open it up completely, so the two halves are ready to sit around the zipper chain.
Click it onto the zipper
Place the open ZlideOn over the zipper teeth and press both sides firmly together until you hear it click shut. Run it the full length of the shaft a couple of times to bed the teeth in — your boots are repaired.
Better to see it in action?
The whole repair takes less than a minute. Watch it done from start to finish.
Watch the ZlideOn repair video
Important things to remember
A broken zipper pull and a broken slider are the same repair. The pull is the tab you take hold of; the slider is the metal body it hangs from. Boot pulls snap off often, because of the force needed to haul a zipper up over a calf — and when one goes, the slider underneath is normally worn as well. Fitting a whole new slider fixes the boot properly, rather than threading a keyring or bootlace through what's left of the old pull.
ZlideOn replaces the slider — not the zipper chain itself. Before you start, check the teeth and the tape stitched into the boot: if teeth are missing or the tape has torn away from the leather, the boot needs a cobbler rather than a new slider. Far more often the slider has simply worn wide from being yanked over a calf, which is why the teeth stop locking behind it.
Getting the size right matters. Check the number printed on the back of your old slider or measure the width of the zipper teeth before ordering. Tall and riding boots often use size 10, while ankle boots and dress boots usually run a narrower coil. If you're unsure, a multipack covers the most common sizes and is the safe choice.
Boot zippers are closed-end, so the ZlideOn goes on from the top. Fit it on the side carrying the larger part of the stopper, and if the zipper skips or gapes after the first few pulls, don't force it: open the slider, check both rows of teeth are seated fully inside, and press it shut again. Replace the slider on both boots if the second one is also feeling loose — they wear at the same rate.
Why repair your boots instead of buying a new pair?
Boots are among the longest-lasting things in a wardrobe, and the leather almost always outlives the zipper. Replacing the slider with ZlideOn takes minutes, costs a fraction of a cobbler's zipper replacement, and needs no stitching or specialist tools. Made in Europe from durable zinc and steel, a ZlideOn slider handles the strain of pulling a boot closed day after day.
Repair, don't replace. Leather is one of the most resource-intensive materials to produce, so every pair of boots kept in service makes a real difference. Choosing to repair is one of the simplest, most effective sustainable choices you can make — and with ZlideOn, it's also one of the easiest.