(Source: Black Tie Guide)
The fit of your suit is the most important element to get right. A badly fitting $3,000 suit will look terrible on you whilst a well fitting $500 suit will have you looking and feeling fantastic. Brad Pitt shows this to be true with his designer tuxedo sleeves and trouser hems too long. Whilst the rest of the suit fits him pretty well the eye just can't get past the super long sleeves and trousers. These are very simple alterations to make on an off the rack suit and essential elements to get right on a tailor made suit.
Having a tailor made suit ensures that the fit is right whatever your body shape so when you wear it you will look and feel great. There are some things that can be done to enhance your strengths and mask the weaknesses and I'll expand on these in the next post.