Cut the tops off and simply roll them down (in large folds rather than like a sleeping bag!). For this you may also need to cut down the seams a bit if it’s proving tight or resistant.
Then voila – fab new ankle boots. Hannah also left the zips undone for an extra slouchy look, which is why this trick would be perfect for boots with a broken zip.
I have a pair just like this which I hardly ever wear as I find knee high much trickier to match with outfits than ankle… can’t wait to be back in the UK to give this a go!