I walk an average of 6 miles a day and have struggled with heel and foot pain for the past 2 years.  I wore these boots on the very first day for 6 miles of totally pain free walking !  I was giddy with happiness.  I have ordered another pair of them and wish they came in a larger variety of colors, as I would happily order them all.  Perfect city boot for anyone suffering from plantar faciitis, or toe pain. The heel is very comfortable, the width is true to size.  I was able to wear normal socks and had no rubbing spots.  They only come up to around mid calf (5'7") so I don't know about the 'knee high' claim but I really love them.