I got a super deal on some fully lined brown Konig field boots, beautiful boots, but as they were custom made one boot is @ 1.5cm bigger than the other--and I was wondering if the bathtub method might shrink the boots that small amount? The boots have zips from the top of the foot up, if that makes a difference. The boots aren't really broken in yet--really very good condition. Thanks for the help.
I think all of what Intrepid said is right--you could shrink them a bit, but they might stretch back out. And I'm sure a good cobbler would howl in protest at that suggestion (especially using heat to shrink them). I know you said the boots were Koenigs, but you might check Vogel's website. They have a whole list of what they charge for alterations and repairs, and are really nice to talk to on the phone. (Hee hee--I just scored a great never used pair of Vogels off Ebay that I am going to have altered for me. Should end up with a super nice pair of boots for about a third of what they cost new!) Good luck!