This was all back in the early days of kenetreks. First pair of kenetreks i had were a wide size 11.5. They were very comfortable until i had to walk in them. Tried for 4 months to get the heel rub to go away. Hiked miles in them, tried different socks, liners, etc. Nothing would stop it. Returned them at no cost other than shipping for a reg width 11.5. Those were much better on heel rub but it would still rear its ugly head from time to time. I powered through those for multiple years. After that tried many different brands mostly with success, then 4 years ago went with Lowa Tibets. By far the best boot i have had. No issues with fit, comfort or rub. They really fit my feet well. Regular width and no issues. Only thing is I didnt get very many years out of them. They gave up the ghost on my Wyoming whitey hunt this year. Sole gone, rubber toe liner peeled away, leather cut to hell, and they leaked like a sieve. Turned around an bought another pair. Straight out of the box perfect, just like the first pair. Just ordered a pair of kick around boots, Lowa Renegades. They showed up yesterday. Perfect fit and comfort as well.