My 4-year old Alpinstars finally gave up last October and I had to replace one of the zips.
This time the other (right) one snapped in the same place.
Although the repair I carried out is fine and standing up to abuse well, I find the puller a little small as the force required to zip up motorcycle boots is fairly substantial (well, more than other zip that one has about one’s clothing…)
Many years ago, I was a corporate person (company car, fuel card, healthcare, … pension…) and in the 80s we were big on time management and all had those fancy leather folders that contained a fraction of what my iPhone contains. I still have the leather folder and it has a rather nice leather puller:
These boots are good for another few years (watch this space)