If you’re going to ruin someone’s week—or salvage your own—you should at least look well dressed doing it. Clothing, like timing, matters. And while breakups are rarely remembered fondly, they are often remembered precisely. What you wore may become the footnote that survives the story.

Ideally, your outfit suggests you had other plans. For women, a coat that drapes well over the back of a chair is essential; it gives you an exit cue, and something to fold your arms into if things get emotional. Cashmere or camel, a double-faced coat or trench works best, worn open to signify the loosening of bonds.

For men, a knit polo is always correct. The trousers should be tailored, never tight. Anything that hints at stretch or tech fabric gives the wrong impression (namely, that you’re open to compromise). Loafers, obviously. Suede, ideally. No-show socks are a red flag that you’re not taking things seriously. Show socks, and make them merino. And never white, unless you’re Italian and it’s August.

If the coat is navy, it must be long. Black is difficult unless you’re tall, recently shaved, or French. You are not performing grief; you are acknowledging closure. A leather folder or small book under the arm lends the right air of detachment. You have somewhere to be.

Women can manage more flair, but restraint is the power move. A silk blouse, easy trouser, a fine sweater so understated it can be mistaken for indifference. Flat mules. A long-sleeved dress. The goal is to look composed—not cruel or casual.

Avoid anything that clings, creases, or invites conversation. A breakup outfit should not say, “Notice me.” It should say, “Thank you for your time.” It should suggest you’re en route to something better. Do not wear anything you’d describe as “fun.” Fun is what got you here.

Handbags should be small, structured. Under no circumstance should you carry a tote bag. You’re letting go of baggage, not accepting more. Shoes should be soft, soundless, and discreet. If yours have laces, reconsider—knots suggest entanglement.

The jewelry question is personal. If it was a gift, consider: Are you wearing it as armor or as evidence? One is strategic. The other is punitive. Neither is wrong, but know which you’re doing. Just make it something you don’t fidget with. A signet ring. A thin watch. A gold cuff that says, “I will not be dividing assets.”

(Needless to say, if you suspect you’re going to be broken up with, the same rules apply. Dress like you have somewhere else to be. You can’t control the outcome but you can control the visual record.)

And when it’s done, leave quickly. Hands in your pockets. Not rushed, not smug, just relieved. Fragrance? Yes. But not one that lingers. (You’re not haunting the place.) Because the best breakup outfits don’t say, “I’ve moved on.” They say, “This was always going to happen.”

Jennifer Noyes is the Editor and Chief Merchandiser at AIR MAIL’s AIR SUPPLY