Quote:
Originally Posted by
vancity2010 
The problem that I have with all dress shirts is the flaring in the back. I can tuck the shirt in to look all nice but once I sit down the shirt becomes baggy and would look so sloppy. I get up quite frequently from my desk at work so it is constant. There's nothing wrong with the shirts fit, the overall fit is very good but its just the bagginess in the lower back that annoys me.
Is there anything I can do to minimize this and secondly what causes the excess bagginess? Can I easily get the shirt altered to fix the problem or would that require allot of work?
It may be caused by several things, or combination of them. Most shirts are cut "generously" on the waist, to accomodate for people with wider waists. So, if you're athletic and the shirt is cut this way, you're gonna have a lot of excess material that will "blouse", "flare" or "sail". The solution is to take the shirt to your favorite tailor and have it taken in at the sides, darted or a combination of both. If your shirt is MTM or bespoke, you have to take this into account when having your measurements taken so it wont happen. There have been several threads dealing with this. Do a search and you'll get a lot more information.