That's it, the good weather returns ... and it seems that the long winter coats, raincoats and other "trench coats" have been abandoned ...
And, although it seems unwise to walk "the suit to wind" must, in all cases where we do not wear overcoats (of clothing that cover just the suit jacket), respect the rules:
NEVER ATTACH THE LAST BUTTON JACKET! (Unless it has only one button).

Indeed, although we may feel elegant, curved to be in his three-button suit, what's going to happen when we try to reach into your pocket? The jacket ... will deform to achieve, with difficulty, this act of "detente. "
So what we have air in our fully buttoned suits? Strict ... people without an open mind, and unable to reach into the pocket in style, comfort and relaxation!

For it is indeed of comfort, since this practice was introduced by King Edward VII of England, which well-wearing, did not close the top button of his waistcoat. The vest, this measure of elegance that can wear comfortably adjusted, rose to jacket and the jacket.

Leave the top button open gives an elegant silhouette.
In summary:
For a 3-button suit ==> we can attach
is a button (the middle)
or 2 buttons (upper and middle).
For a 2-button suit ==> we can attach
A single button (upper).
For a one button suit (case of tuxedos, suits and other more contemporary cuts), of course that the single remaining can be used!

Let's be smart, let's be smart, do not close the top button of our jackets!