Your clothes should contribute to an overall impression of competence. They shouldn't be the center of attention. Even though men have fewer choices to make when it comes to assembling an interview outfit, there are still some pitfalls to avoid.
Interviewing Attire for Men Guidelines
Business Suits Choose a two piece suit in a conservative cut and a dark color. Navy or charcoal are better color choices than brown. You can vary your look as needed by choosing different shirts and ties.
Shirts No matter which industry you're targeting always wear a long sleeved shirt to the interview. You should also wear an undershirt. For conservative environments choose a solid color shirt. White is always a good choice but when interviewing in a more casual environment, it's OK to wear other colors.
Ties Choose a silk tie, not polyester, and tie it in a
double windsor knot.
Avoid bow ties. Solid colors or very simple patterns are best for conservative situations. If you're interviewing in a more creative or casual environment you can safely choose a bolder pattern but don't get too wild. The monochromatic look (shirt and tie in the same color) can work for creative positions too.
Shoes Dress shoes should always be worn with a business suit. Black shoes are the best choice to wear with a navy or charcoal suit. Generally speaking, conservative situations call for lace up shoes. You can safely choose slip-ons for creative or more casual situations. No matter which type of shoe you choose, make sure they are well polished.
Other Accessories Always wear dark socks, never white. Avoid pocket hankies as they have fallen out of fashion. Generally speaking a belt is a better choice than suspenders. Choose one that matches your shoes and has a simple streamlined buckle.
No matter what choices you make when it comes to your interviewing attire, make sure your clothes are pressed, clean and well fitting. Put on your entire outfit and practice wearing it by the night before your interview. This will allow you to avoid any last minute wardrobe malfunctions.