what button do you button on a suit

When buttoning a suit, the general rule for a two-button suit jacket is to always fasten the top button and leave the bottom button undone. This applies to both single-breasted and double-breasted suits. The top button should always be buttoned when standing, and unbuttoned when sitting down. This not only creates a cleaner silhouette and a more fitted look but also prevents the fabric from creasing and the buttons from popping. For a three-button suit, the rule is "sometimes, always, never," meaning you may button the top button, should always button the middle button, and never button the bottom one. These rules are designed to ensure comfort, proper fit, and a polished appearance.