I've been looking for a chukka for a while and I think I've decided on the Kempton, but the closest store which sells them is in NYC (I'm in Philly), and I'm hesitant about ordering because of sizing. I e-mailed Loake who referred me to someone else who referred me to the store itself, but no one would give a straight answer because they didn't want to suggest the wrong size. I have suede Clark's desert boots in 11D (Used to have a beeswax pair in 11.5D), and Bass Logan's in 11.5D. I know charts and such have been linked, but I get less confident the more I look at everything.
Du you have any shoes made in UK?
I have the Kemptons and I find them very true to size. If that helps you I'm a 10,5W in Timberland boots and a UK 9,5F in almost everything else.