I have a "London Cut" suit from Suit Supply and if you want a very suppressed waist you may want to have the sides taken in even more as I did. It is a great suit for the money though and superior to anything else sub-$800 I've seen. The "Washington Cut" is actually more structured and slimmer and but only comes in peak lapels if that's an issue. The website used to have the drop # for each cut but as of now it looks like they removed that feature.
2/17/12 at 10:25am