I'm a US8E w/o or US8.5E w/ insoles in Danners.
US9.5 in Nike & New Balance
US8.5 in Red Wing
I had a pair of Salomons & they were a US9.5.
FWIW - SIZING INQUIRIES
TIMBERLAND 6" PREMIUM WHEAT: 10US fits like a glove (w/a little toe room to spare), 10.5US would probably be better for full orthotics(?)
DANNER MOUNTAIN LIGHT: 10US fits like a glove (w/a little toe room to spare when worn w/their airthotics), 10.5US would probably be better for full orthotics(?). I haven't tried a 10.5US so I can't really make a just statement.
CLARKS WALLABEES: 9.5US
COLE HAAN LUNAR SOLE: TBD
DOC MARTINS: 10US fits like a glove, but in hindsight, would purchase a 10.5US for use with orthotics
NIKE RETRO JORDANS: 10.5-11US (ie. RETRO 11: 11US, RETRO 5/6/7: 10.5US)
NIKE FOAMPOSITE: 11US
NIKE FREE FLYKNIT: 11US
**** ON ANOTHER NOTE, I UNDERSTAND THAT IT IS PERSONAL PREFERENCE, BUT SHOULD ORTHOTICS ALWAYS BE PURCHASED FOR BOOTS? I AM NOT A BIG FAN OF SIZING UP TO FIT ORTHOTICS IN MY FOOTWEAR UNLESS THE SHOE IS JUST COMPLETELY HELL TO WEAR BC I DON'T LIKE SHOE'S BEING ANY BIGGER THAN THEY ARE MEANT TO BE.