Hey dan, not sure who makes them but if you can find them for sub $200 they are a pretty nice boot, thick leather, well constructed, and comfortable. My only gripe is that the rubber oil-resistant sole makes them essentially useless in the winter.
Also, great pickups Wildling and dcg! Which Clydes are those on the right dcg?
The right are the Carhartt brown twill Clydes....
...and the left are indeed the Jaspe Clyde chinos. Love them. I'm a bit hesitant to offer sizing advice as I have to go more by thighs than waist, so take this for what it's worth. They seem slightly slimmer throughout vs. the "standard" officer chinos. They are roomier than the twill clydes I also got in the same size, but maybe the twill will end up having more stretch.