Wesco mister lou engineer - Gem。Wesco x Ship John | Derroll Boss Engineer Boot - 10.5D rough out suede Mr Lou Heavy indigo crocking, soles have wear, still plenty of life left before needing a resole. Sizing recommendation would be anywhere from a 10.5C/D/E brannock to a low volume 11C brannock(although i dont recommend these for an 11 brannock imo). I am an 11D/E brannock and these are not only a touch narrow, but too short as well. I cannot wear them with the supplied wesco insole unless i wear very thin socks. Using no wesco insole, and thicker wool socks is do able but noticeably narrow on my wider left foot. When walking down a hill, the toes do feel the taper of the toebox, especially on my wider left foot. An 11D sized boot would be more beneficial to me, hopefully this info helps you make an educated purchase. Some other boots i wear comfortably: whites 55 arch ease 350 cutter 10.5D, franks 55 last rainer 10.5E, viberg 2030 10.5E.