I had blisters from hiking boats that had various "problems". It was suggested that on areas that got blisters I should use electrical tape for protection. Thought that sounded weird, but tried it on my preparation hikes. It seemed to work I still found it hard to believe but on my actual...
This site is run by Ivar at in Santiago de Compostela.
This site participates in the Amazon Affiliate program, designed to provide a means for Ivar to earn fees by linking to Amazon