I have a pair of boots that had fit well over the past couple of years, but with each year of use, I believe the liner has packed down (don't know the technical term) and now I feel that the boot is a bit too loose. So, I'd like to see if I could get some work done on them, and if all else fails, get a proper fitting and purchase a new boot. Can anyone recommend a place I can go to? I live in the northern 'burbs of Chicago. Thanks for your help.