He climbed Mt. Whitney in those boots without a single blister. His downfall was putting in some Dr. Scholl's orthotic heel inserts. It forced his feet forward and blistered the balls of his feet. I didn't have any issues with my Saucony Grid Ridge TR trail runners, he he. Best $40 I ever spent on hiking shoes.
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TO know others is wisdom. To know one's self is enlightenment.

-Lao Tsu