LPT : Add moist/damp paper towels to your new leather shoes to avoid blisters / hardness
If you bought new shoes and you're afraid of blistering , and you want them to soften quickly instead of waiting for them to soften by usage , dampen some journal papers / paper towels using a sprayer (don't submerge into water / under tap) and shove as much as you can equally in both of the new leather shoes , put them in a well ventilated area for 24-48 hours , then take out the papers and put some silica to draw out all left moisture from inside , you'll find your new shoes much softer and gentle at first use #entertainment