If you don’t present yourself well at job interviews, even a great resume, it doesn’t matter. Interviewers will form an opinion about your resume before you even touch them. Potential employers are not able to judge books by their covers.

How can you get your foot in front of the door?

When dressing for a job interview, the most important thing is to assess your environment. Different offices have different dress codes. An advertising agency might permit a bit more personality than a government department. Ask the HR department if the employer has a dress code. If in doubt, dress conservatively

Although you don’t have to wear a suit all the time, you should always dress for a job that is two levels above your current position. A suit is a suit that’s well-fitted and neatly-pressed. It should be in a dark or neutral color. You can still look business casual by wearing a collared shirt with a jacket, even if you choose to go for a more casual look. You should ensure that your clothes fit well and are clean.

Remember that it is what’s inside that counts, even if this is often overlooked. Although your interviewer shouldn’t be able to see them, it is essential that you choose the right type of underwear. A recent Calvin Klein Underwear survey, which polled 600 men (available at survey.com), found that 70% of respondents said their undergarments were an extension of who they are. 80 percent also believe a pair of undergarments makes them feel more confident.

“Whether you are wearing a crisp white shirt with slacks or a tailored suit, it’s important to set your foundation with a stylish and comfortable set of underwear,”Jeannie Mai, Celebrity Stylist and host of Style Network’s, says “How Do I Look” “Extra” correspondent. “Consider Calvin Klein’s Classic Two Pack Boxer Briefs (http://www.cku.com”>www.cku.com). They are 100 percent cotton with a traditional fit, and are sexy, yet functional, with the signature logo waistband. Available in black and white, they can lend added confidence for your interview.”

Your shoes should be polished to complete your style. You will show your employer you care about your hair by taking the time to groom it.