

Is it possible to narrow the shaft diameter of a boot ?
Hello everyone, first post here
I recently bought a pair of Solovair biker boots in UK 6 size (picture is from the store page), and so far i've been loving them. They feel very solid, but are still malleable.
Here are the specs : https://eu.nps-solovair.com/collections/mens/products/gf0-11000-bg
However, I'm having a problem with the top of the boot, as I find the shaft slightly too wide therr, even with the buckles at the narrowest position. Since I have slim calves, It feels like I'm slightly floating.
I have tried slightly shrinking the boots by dampening them and going soflty with a hairdryer, but it didn't have a noticeable effect.
Could a cobbler modify the shaft to make it narrower ? I have no idea on what the process could be
Thanks for your answers