There are different types of attire acceptable to wear to the workplace, but professional business attire is typically recommended for interviews and career fairs. This type of dress typically consists of:

• A jacket or blazer
• Button down shirt or blouse
• Dress pants, skirt, or dress (at least knee length)
• Polished, close-toed shoes
• Briefcase/shoulder bag/purse
• Padfolio

Business casual or business relaxed may also be appropriate in some settings, and are less formal than business professional. Do your company research before the interview or career fair to help determine what is the most appropriate attire for your circumstances.