Originally Posted by Nataku
Personally, I think the Corcoran's run small, or they did at one point in time. I have a pair of Vietnam era Corcoran Jump boots that are marked 12 1/2 and I normally wear an 11. They fit perfectly with normal socks.
Corcoran has changed hands since then, I believe, so this may no longer be true.
I'm pretty happy with my pair of jump boots in 11.5 B, bought about five years ago, so I'd say they size about right these days.
Also, check out the brown WWII-style.