For a Bain interview, a suit or equivalent professional business attire remains the lowest-risk choice unless the recruiter explicitly gives a different dress code.

You want the interviewer focused on your answers, not wondering whether you misunderstood the setting. The consulting interview dress-code guide walks through the safest options.

Do not confuse a relaxed firm culture with a relaxed interview standard. You can show personality through the conversation without making clothing the experiment.

Suit. Easy decision. Nobody is rejecting you for being slightly more formal.

I interviewed virtually and still wore full business attire from the waist up.