For every businessman a good collection of suits is a must for his wardrobe. Suits are available in two forms, they are available ready made or they can be custom made according to your own specifications by a tailor. In the former case you have to look after your physique and then select the suit whereas in the latter case that in custom men's suit you don't have to bother about the fitting and sleekness of the suit. You just need to give your measurements and leave remaining on the experienced hands of the tailor.
There are a lot of things that should be taken care of while selecting a suit. Some of these are the color, fabric, dimensions, type of suit and of course the purpose for which it is required. An appropriate combination of all these factors will be required for a suitable suit.
There is a wide variety in which suits are available its upon you to decide that which one will be perfect for you.
Double Breasted Suit
The first thing that is noticed about a suit is that whether it is singly or doubly breasted.The main feature of double breasted suit is overlapping front flaps and two, parallel columns of buttons. In most double-breasted coats, one column of buttons is decorative, while the other functional. The original double-breasted jacket has six buttons, with two to close. But it may vary according to size, suits with four pairs of buttons are also available. They are now not as commonly seen as they used to be a few years back. They are advantageous for thin and taller gentlemen.
Single Breasted Suit
They are now more commonly used as compared to the doubly breasted suit. They have a narrow overlap and only one column of buttons. Single-breasted suit jackets and blazers typically have two or three buttons (jackets with one or four buttons exist, but are not common).
Lapels
These are the folded flaps of cloth on the front of a suits. Usually they are formed by folding over the front edges of the jacket or coat and sewing them to the collar, an extra piece of fabric around the back of the neck.
There are three basic forms of lapels: notched, peaked and shawl. Notched lapels, the most common, are usually seen on business suits. They have a wide V-shaped opening and a collar join. Peaked lapels are more formal, and nearly always used on double breasted jackets or coats.
with a very narrow deep V join at origin. Shawl is the least formal.
with a very narrow deep V join at origin. Shawl is the least formal.
Waist Buttons
A suit has either one row of buttons or two, depending on whether it is single or double breasted. A single breasted jacket has a single row of buttons, numbering anywhere from one to four, though two and three are the most common. The three button jacket is the most traditional form. Usually, only the middle or second button is fastened when standing, though the top two buttons may be fastened to produce a slightly more formal appearance. Two button suits are a slightly later innovation, but since they show more of the shirt and tie, they produce a slightly slimming appearance. Only the top button of a two button jacket is fastened.
Double breasted jackets most commonly have either four or six buttons on each side where there are six buttons, only the lower four are for buttoning, though due to the design of the suit, only two will actually be buttoned at any given time. Generally it is followed that a doubly breasted suit is buttoned while standing and unbuttoned while sitting. Whereas the bottom button of a single breasted jacket is always left undone.
Breast Pocket
This is the prime region of importance of a suit. Generally the object that is seen in this is a handkerchief or pocket square which enhances its elegance. You cannot keep any bulky object in this pocket as it will project out and appear awkward giving it a lumpy appearance and distorting the sleek appearance of the suit, moreover any such object will be pressed to your ribs and would feel uncomfortable. 
