From its array of colors, styles and brands to the mix-and-match opportunities it presents to the wearer, a man's belt can be equal parts afterthought and lynchpin of his entire wardrobe

In fact, it is the belt's often overlooked complexity that has so many men wearing them improperly. Just as Othello once said of the board game, wearing a belt "takes a minute to learn and a lifetime to master."

There are just two types of belts you must know: Casual and formal. And the best way to remember these two is to use a rule of thumb -- literally.

If the belt is about as wide as your thumb, it's a dress belt. Anything wider means it's casual. If you're not quite sure, you should also know that formal belts usually sport a glossy, reflective finish, while casual belts are more often found in flat, muted shades and textures.

• Chose one about 1" to 1 1/4th wide with a subtle metal buckle.
• The best fitted belt is one that is long enough to fit your waist and fasten in the 2nd hole.
• A black belt - in leather, the most used one in a business , formal set up.
• A brown belt - in leather, works well with business casual looks.