What to Wear to an Investment Banking Interview
    Guides
    Behavioral

    What to Wear to an Investment Banking Interview

    September 19, 2025
    5 min read
    By IB IQ Team

    Why Interview Attire Matters

    In investment banking, first impressions count. Before you even answer technical or behavioral questions, your appearance communicates professionalism, attention to detail, and judgment. While attire alone won’t land you the job, dressing inappropriately can hurt your chances.

    The goal: look polished, conservative, and professional—without drawing attention to your outfit.

    While you perfect your appearance, prepare your answers too: Looking the part is just the first step. Use our iOS app to master the 400+ technical and behavioral questions you'll face once you're in the room.

    General Principles

    • Conservatism is key: Stick to traditional business formal. Avoid trendy, flashy, or overly casual choices.
    • Fit matters: Clothes should fit well. Oversized or too-tight clothing looks unprofessional.
    • Neutral colors: Navy, gray, and black dominate for a reason—they’re safe and convey authority.
    • Subtle accessories: Keep jewelry, ties, and other accents understated.
    • Grooming counts: Clean shoes, tidy hair, and overall neatness are as important as the clothes themselves.

    Apply these standards consistently: The same professional dress code applies to networking events and informational interviews, not just formal interview rounds.

    Now let’s break it down by gender.

    What Men Should Wear

    Suit

    • Two-piece suit in navy or charcoal gray. Black is acceptable but less common.
    • Stick to a conservative cut—nothing too slim or flashy.

    Shirt

    • White or light blue dress shirt.
    • Crisp, ironed, and long-sleeved.

    Tie

    • Simple patterns (stripes, dots) or solid colors in navy, burgundy, or dark tones.
    • Avoid loud colors, novelty ties, or overly bold designs.

    Shoes

    • Black or dark brown leather oxfords or derbies.
    • Polished and in good condition.

    Belt

    • Keep it classic.
    • Match leather color to your shoes.

    Watch & Accessories

    • A simple, classic watch is fine.
    • Avoid very expensive or flashy watches—even if you own one. It can send the wrong message or make you look like you’re trying too hard.
    • No cufflinks unless part of a subtle formal shirt.
    • Carry a slim portfolio or leather folder for resumes, not a backpack.

    What Women Should Wear

    Suit

    • A tailored pantsuit or skirt suit in navy, gray, or black.
    • Skirt length should be at or just above the knee.

    Blouse

    • Conservative blouse or shell in neutral or light colors.
    • Avoid low-cut, sheer, or overly bright tops.

    Shoes

    • Closed-toe pumps in black, navy, or neutral tones.
    • Moderate heel height (2–3 inches is safe).
    • Shoes should be polished and professional, not trendy.

    Jewelry & Accessories

    • Minimal jewelry: stud earrings, small necklace, or a simple bracelet.
    • A professional tote or structured handbag.
    • Avoid luxury statement pieces like high-end watches or designer logo-heavy bags. As with men, understated is safer.

    Grooming

    • Simple, professional hairstyle.
    • Makeup should be neutral and understated.
    • Nails clean and polished in natural or muted shades.

    Common Mistakes to Avoid

    • Overdressing or underdressing: A full tuxedo or casual khakis are equally wrong. Business formal is the standard.
    • Bold fashion choices: Bright colors, flashy patterns, or trendy cuts distract from your professionalism.
    • Poor grooming: Wrinkled clothes, scuffed shoes, or messy hair leave a negative impression.
    • Carrying the wrong bag: Backpacks or oversized handbags look unprofessional.
    • Over-accessorizing: Statement jewelry or luxury watches can give off the wrong impression.

    Just as you avoid interview attire mistakes, avoid common technical mistakes too. Download our comprehensive guide with 400+ questions covering every technical and behavioral topic—ensuring you're prepared for what interviewers will actually test.

    Why Expensive Watches Can Hurt You

    You might think a Rolex or luxury timepiece signals success, but in interviews it can backfire. Here’s why:

    • It can look like you’re trying to “show off” wealth rather than demonstrating humility.
    • Interviewers may quietly judge it as poor judgment or immaturity.
    • Banking culture values professionalism, not flashiness—especially for junior roles.

    If you like wearing a watch, choose something simple and understated. In banking interviews, less is more.

    Final Checklist Before Your Interview

    1. Does your outfit fit properly?

    2. Are your clothes pressed and clean?

    3. Are your shoes polished?

    4. Are accessories minimal and professional?

    5. Would your overall look blend in at a conservative corporate office?

    If the answer is yes to all, you’re ready.

    With your attire perfected, ensure you're equally prepared for what happens inside the interview room by reviewing the complete IB and PE interview process and what to expect at each stage.

    Conclusion

    Dressing for an investment banking interview is about demonstrating professionalism and good judgment. For men, that means a conservative suit, tie, and polished shoes. For women, a tailored suit with understated shoes and accessories.

    Remember: don’t let your outfit be a distraction. Skip flashy jewelry, bold fashion, or expensive watches. Your attire should convey seriousness and respect for the process, while your skills and story do the talking.

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