Good boot!  I like higher boots normally but gave these a shot as I respect the Carhartt brand and wanted more of my lower leg to breathe as I work in a high temperature environment and the taller boots were causing too much irritation due to sweat and friction regardless of sock type I tried.  It took a day or two to break in the boot and allow my foot to adapt a bit.  The stock insert supports my high arch, this is normally an issue for me.  Definitely a good purchase.