There’s a small styling rule that instantly separates a blazer that looks okay from one that looks effortless.It’s not about brand, fit, or price. It’s about the buttons.
If you’ve ever wondered why a blazer can feel slightly “off” even when everything else works, this is usually why.
Sometimes. Always. Never.
Blazers are one of those wardrobe pieces that can instantly make you feel pulled together, or slightly off, and often it comes down to one small detail: the buttons.
There’s a long-standing tailoring rule that dictates how a blazer should be fastened. It’s easy to remember, once you know it:
Top button: sometimes
Middle button: always
Bottom button: never
The Rule Broken Down.
Let’s walk through it properly, because this is one of those styling details that quietly makes everything look better.
Top Button - Sometimes Buttoned
The top button is optional and depends on the moment.
When you’re standing, buttoning the top button can create a cleaner, more structured look, especially for work, meetings, or a polished daytime outfit. Leaving it open feels more relaxed and modern.
There’s no hard rule here.
Button it sometimes, when it adds to the look.
Middle Button - Always Buttoned
This is the anchor of the blazer.
If your blazer has three buttons, the middle button should always be fastened when you’re standing. This is the button the jacket is designed around, as it defines the shape, keeps the proportions right, and ensures the blazer drapes correctly through the waist and hips.
If you only remember one button to fasten, it’s this one.
Bottom Button - Never Buttoned
This is the golden rule and the most commonly broken.
The bottom button is never meant to be buttoned. Not standing. Not sitting. Not ever.
Leaving it undone allows the blazer to move naturally and prevents pulling, bunching, or awkward flaring at the hem. This applies to both structured and relaxed tailoring.
Once you sit, all buttons should be undone regardless of how many your blazer has. This preserves the fit and avoids stressing the fabric.
Think of buttoning as a standing rule only.
Why This Rule Exists
Tailoring is about balance and movement. Blazers are cut so the fabric falls cleanly when the correct buttons are fastened, and looks wrong when they aren’t.
Following this rule:
- Keeps the silhouette sharp
- Prevents pulling and creasing
- Makes even simple outfits look intentional
It’s a small detail with a big visual payoff.
Want Help Styling the Pieces You Already Own?
Great style isn’t about buying more, it’s about knowing how to wear what you have, properly and confidently.
If you’d like personalised styling support, wardrobe edits, or help refining the details that make outfits work harder, get in touch.
Because the difference is always in the details.
