i wear them for 5 years now , every day, have 3 pairs, oldest ones get the muddy spring conditons ect, they are not waterproof after couple weeks for me, would like to find a similiar fitting boot with some insulation that is warmer, but they have never left a blister, and i walk alot, every year pack alot of heavy loads in the backpack ect,,,,, i really like meindels for waterproof and warmth, but every pair i own leave blisters on heels, i think with a taller boot , my calves push the boot down every time i step creating friction,,,,