Complete Dictionary of Dreams

by Dr. Mıchael Lennox
A vest is an article of clothing that completely covers the most vulnerable part of the body, underneath which all of the vital organs are located. In this way, anything that relates to a vest in a dream connects to this center of your life force and the risks therein. How may you need to protect yourself right now? Also, playing things “close to the vest” implies some measure of restraint around revealing your desires and plans.

A dream that features a vest may be asking you to hesitate before sharing your goals.

The Complete Guide to Interpreting Your Dreams

by Stearn Robinson - Tom Corbett
Trouble of your own making is the message contained in a dream featuring a vest or waistcoat: try to avoid excesses and/or impulsive behavior.

See also Colors.

The Big Dictionary of Dreams

by Martha Clarke
Wearing a vest portends a good social position after hard work. But if it is dirty or torn it means you want to achieve a level for which you are not ready yet.