You probably think pockets are just pockets.

They're a functional detail. Somewhere to put your hands. Somewhere to put a wallet or keys. You don't think about the style.

But the style of pocket on your jacket is telling people something. Whether you realize it or not.

A flap pocket on a business suit reads differently than a besom pocket on a tuxedo. Patch pockets on a casual blazer communicate something entirely different. And most guys have no idea that these distinctions exist.

Here's the truth: pocket style—especially the lower jacket pockets—is one of the clearest signals of a jacket's formality level and quality. It's one of the details tailors use to communicate whether a jacket is casual or formal, whether it's made for the office or made for the weekend.

And because most guys don't understand pocket styles, they end up with jackets that don't quite match their intention. They buy a casual sport coat when they wanted something polished, or a formal jacket when they wanted something relaxed, and something feels off without them knowing why.

So let's break it down.

What Pocket Styles Actually Communicate

Before we get into the specific types, let's talk about what pockets are saying.

Formality: Pocket style is one of the clearest signals of how formal a jacket is. Certain pocket styles belong on formal wear. Others belong on casual wear.

Quality: The quality of pocket construction—how well the edges are finished, how cleanly the pocket is attached—reveals the overall quality of the jacket.

Intentionality: A well-chosen pocket style for the jacket's purpose signals that the maker thought about what they were creating. A random pocket choice signals they didn't.

Workability: Some pockets are designed for actual use. Others are more decorative. Knowing the difference tells you something about whether the jacket is meant to be functional or formal.

That's what pockets communicate. And because most guys don't notice them, they miss one of the clearest signals about what kind of jacket they're looking at.

A Quick Note: Where Pockets Matter Most

Jackets have two pocket areas: breast pockets (chest) and lower jacket pockets (hip/side).

Breast pockets are usually welt pockets on formal wear. That's the standard. Don't overthink it.

Lower jacket pockets are where pocket style variety happens. This is where the distinctions matter. This is where you can read what kind of jacket you're looking at.

Focus on the lower pockets. That's where the story is.

Flap Pockets (Most Common on Business Suits)

Flap pockets are the standard on business suits. They're the most common lower pocket style you'll see.

What It Looks Like:

A pocket opening is cut into the jacket body, and a flap of fabric (usually matching the jacket) sits on top of the opening. The flap creates a line across the side of the jacket. You can usually unbutton the flap to access the pocket, or leave it buttoned.

When Flap Pockets Work:

Business suits: This is the default on business suits. It works across all formality levels—from business casual to business formal.

Sport coats: On mid-to-high-quality sport coats, flap pockets are common.

If you want the safe, versatile choice: Flap pockets work on almost any jacket. They're not making a statement—they're just saying "well-tailored jacket."

When Flap Pockets Don't Work:

Very casual wear: On genuinely relaxed jackets (linen, cotton), flap pockets can feel overdressed.

Minimalist formal wear: On a tuxedo, flap pockets are replaced by besom pockets for a cleaner look.

What to Look For:

Flap proportions: The flap should be proportional to the jacket. Not too big, not too small.

Flap alignment: Is the flap straight and level? Uneven flaps signal poor tailoring.

Edge finishing: The edges where the flap meets the jacket should be clean and well-stitched.

Besom Pockets (Single or Double—The Minimal Choice)

Besom pockets are the clean, minimal pocket style. They're common on formal wear—especially tuxedos—and increasingly popular on regular suits for their refined look.

What It Looks Like:

A pocket opening with a thin band of fabric (the besom) framing the top. Single besom has one thin line. Double besom has two thin lines framing the opening from top and bottom. The pocket itself is hidden—you see only the besom framing the opening. It's minimal and precise.

When Besom Pockets Work:

Tuxedos and formal wear: Besom pockets are the standard on black-tie and white-tie jackets. They create a clean, unbroken line down the front.

High-end suits: On luxury suits, double besom pockets signal craftsmanship and refinement.

If you want maximum refinement: Besom pockets look more polished and intentional than flap pockets. They don't interrupt the line of the jacket.

Contemporary formal aesthetic: Besom pockets are increasingly popular on modern formal suits for their clean, minimalist look.

When Besom Pockets Don't Work:

Casual jackets: Besom pockets on a casual sport coat look overdressed.

Functional pockets: If you actually need to use your pockets, besom pockets are minimal and not easy to access. They're designed to be visually clean, not functional.

What to Look For:

Besom precision: The besom line should be perfectly straight and level. Crooked besom signals poor tailoring.

Besom proportion: The besom should be thin and elegant, not thick and clunky.

Construction quality: Besom pockets are labor-intensive to construct. Clean, precise execution signals quality tailoring.

Patch Pockets (Casual Designs)

Patch pockets are the most casual pocket style. They're literally a patch of fabric sewn onto the outside of the jacket. They come in many casual design variations—envelope style, with loops, flaps, etc.

What It Looks Like:

A shaped piece of fabric is sewn directly onto the side of the jacket. The design varies: simple rectangles, envelope flaps, loops, angled edges. The pocket sits on top of the jacket surface.

When Patch Pockets Work:

Casual sport coats and blazers: Patch pockets are the standard on casual jackets. They're functional—you can actually use them.

Unstructured jackets: On relaxed, slouchy tailoring, patch pockets fit the vibe perfectly.

Summer jackets: Linen jackets, tropical wool, cotton blends—patch pockets work here.

Textured fabrics: On interesting textures (tweed, linen, herringbone), patch pockets look intentional.

Workwear aesthetic: If the jacket has a utility vibe, patch pockets reinforce that.

When Patch Pockets Don't Work:

Business formal wear: Patch pockets on a business suit look wrong. They're too casual for the context.

Formal evening wear: Never patch pockets on black-tie or white-tie jackets.

If you're going for refinement: Patch pockets read casual. If you want polish, choose besom or flap instead.

What to Look For:

Edge finishing: The edges should be cleanly finished with thread. Sloppy, raw edges signal poor quality.

Symmetry: Both pockets should be the same size and positioned equally.

Design execution: If the pockets have design details (envelope flaps, loops, etc.), are they sewn cleanly? Or do they look hastily done?

The Standard You're Holding Yourself To

Understanding pocket styles isn't about memorizing rules.

It's about understanding that pocket choice communicates something about the jacket's purpose. And choosing pockets that match that purpose.

If you buy a formal suit and it has patch pockets, something's off. The pocket style doesn't match the jacket's vibe.

If you buy a casual jacket and it has besom pockets, the same problem exists in reverse.

Most guys don't notice pockets. They don't think about what they're communicating. And then they end up with jackets that feel slightly wrong without understanding why.

But you do now. You can look at a jacket and know immediately what pocket style it has and whether that's appropriate for the jacket's purpose.

What to Do Next

Look at your jackets right now.

What pocket style do they have? Patch, flap, or besom?

Does that pocket style match the jacket's formality and purpose?

Next time you're buying a jacket, look at the pockets.

Are they appropriate for the formality level you're buying?

Is the construction clean and well-executed?

These observations will tell you a lot about the overall quality and appropriateness of the jacket.

Because pockets aren't just functional details. They're one of the clearest signals of what kind of jacket you're looking at—if you know what to look for.

Start paying attention to pockets. Understand what they're communicating.

The rest follows.