Business Casual for Men, Explained

Business casual means a collar and real pants, without the suit and tie. Everything else is detail.

What counts

  • Tops: dress shirts, button-downs, polos, fine-gauge sweaters and quarter-zips over a collar.
  • Layers: an unstructured blazer or a knit blazer. Optional most days, useful for meetings.
  • Pants: dress pants, chinos and five-pocket pants in a dressy fabric.
  • Shoes: leather shoes, loafers, or clean minimal leather sneakers where the office allows them.

What does not

  • T-shirts, hoodies and joggers.
  • Ripped or faded denim. Dark denim is fine in some offices, so look around before you assume.
  • Athletic sneakers and sandals.

A week of business casual

  • Monday: blazer, light blue dress shirt, grey dress pants.
  • Tuesday: polo, navy chinos.
  • Wednesday: crewneck sweater over a button-down, five-pocket pants.
  • Thursday: dress shirt, dress pants, quarter-zip for the cold conference room.
  • Friday: polo or henley under an overshirt, chinos.

That is about seven pieces. Rotate them and nobody will notice you are repeating.

Starting an internship or a first job

You do not know yet what your office really wears, so buying a full wardrobe before day one is a gamble. Renting the core pieces for the first month lets you see what people wear, keep what you actually reach for, and send the rest back.