Side vents are a great example of form and function uniting. They allow the wearer to place their hands in their pockets without losing an attractive line. Classification: Business, Business Casual.
Side vents give the illusion of extra height. This is due to the fact that the distance from the floor to the bottom of the jacket looks longer because the eye travels uninterrupted up the length of the vent.
The vents of your jacket allow you to move with greater freedom.
No vents are found in formal jackets, and in shorter casual jackets and coats.
A single vent allows greater movement and access to your trouser pockets.
The double vented jacket is ideal for the professional speaker and person wearing a battery pack for their microphone. Side vents also allow ease of access to trouser pockets without raising the side of the jacket. They also disguise weight gain more effectively than a centre back vent.