5 Ways TO dress in an Investment Banking Interview (for Men) Today we cover what you can wear to finance and banking interviews. Wear traditionally light colors: These colors include really light shades of blue and grey, and white. Other light colors may be okay, but typically you cannot go wrong with a classic white shirt. Business Casual means wear a full suit and tie: Better to stay on the safe side and dress-up rather than down. Have your belt color match your shoe color: You can’t go wrong with this classic principle. Use a tie clip: This is not essential, but it really adds character and simple structure to your overall look. It is not tacky like a pocket square, but has some (perhaps limited) practical use. Wear charcoal grey or navy blue: Grey and blue are traditionally business colors while black often suggests a more formal, serious tone (e.g. wedding, funeral). Basically, everything we have written here follows the conservative rules of GQ. Stay away fr...