First impression is very important. Most companies require men to dress in business professional clothing everyday. This means suit and tie at all times, although a sport coat and trousers may be appropriate.

When shopping for your business professional wardrobe, there are
a few guidelines to follow:

• Buy clothing made with good material.
  
• Buy clothes that can be worn throughout the year.
  
• Buy less pay more. Buy items that are durable, even if they
  cost more. They will last longer. You don’t need too many
  items in your business wardrobe, just enough to get you through about two weeks.
  
• If you think it is inappropriate is probably is
  
• When in doubt, dress up the match, not down

Dressing the part:

• Invest in a navy or grey sport coat
  
• Button jacket when standing
  
• If two buttons, button top one, never button all buttons
  
• Under jacket wear long sleeve white shirt
  
• Shirt cuffs should go over ½ inch past jacket
  
• Muted stripes or plaid is acceptable
  
• Wear shirts made of 100% cotton
  
• Always wear undershirt under dress shirt
  
• Shirt should always be tucked in
  
• Pants should be worn at the natural waistline
  
• If pants have belt loops, always wear a belt

Shoes and tie:

• Socks should reach calves, and match trousers
• Wear loafers
• Buy an updated tie
• Less than 3” wide are high fashion
• More than 3 1/2 “is out of fashion
• Tie should end at about the belt buckle

Accessories:

• Pocket scarves are a good compliment and should match tie
• When in doubt be conservative
• Invest in good briefcase, by where you will go, and what will be
  in it should match with attire
• Wear a nice watch
• A pen is a piece of jewelry