Approximately 30 seconds is all it takes to form a strong first impression, but it could take years to erase it. You may not say too many words in those 30 seconds, but you do send a tremendous number of non-verbal clues.
Appearance plays a major role in non-verbal communication.
When people dress with confidence, it reflects in their appearance and in their presence. The image and appearance of confidence and authority translates directly into actual authority and power. When you look right, you feel confident about your appearance and, as a result, you perform better. It's a fact that successful people dress in a certain way. They respect others who do the same.