Hat Anatomy: Every Part and Term Explained

Nov 05, 2026 • 18 min reading time by willee roberts Share Article:-

Pick up any hat and turn it over in your hands. It has a crown on top, a brim around the edge, a sweatband inside where it meets your head, and an outer ribbon everyone sees first. Almost every word a hatmaker uses comes back to one of those parts. (Hats are supposed to be fun, so don't worry about memorizing any of it.)

Hat crown types are the shapes pressed into a hat's top: open, center dent, teardrop, diamond, telescope, cattleman, and pinch front are some examples of crown shapes. The four main parts are the crown, brim, sweatband, and hat band. Here's the walk-through, the way we'd give it to you at the bench in Berkeley.

What Are the Main Parts of a Hat?

Part	Where it is	What it does
Crown	The top, above the brim	Holds your head and gives the hat its shape
Brim	The edge that sticks out	Shades, shelters, and frames the face
Edge binding	Around the outside edge of the brim	A ribbon for decoration that also puts some tension on the brim to make it “snap”
Sweatband	Inside, against your head	Sets the fit and wears into your head
Liner	Inside the crown	Finishes the interior
Hat band	Outside, around the base of the crown	Trim and finish

What Is the Crown of a Hat?

The crown is the part above the brim that sits on your head. It's also the answer to "what is the top of a hat called?" Hats have personalities, and much of that personality lives in the crown: its height, shape, and creases.

A crown also has to suit the head underneath it. Fit isn't only a number. Someone with a long, narrow head can feel pinched in a round crown even when the size is right. That's why we like to see a hat on the person it's for, and why getting it right sometimes takes a round or two. The hat sizing guide covers how to measure, and How to Stretch a Hat covers what to do when a hat feels tight.

What Are the Different Hat Crown Types?

Crown types are named for the dent or crease pressed into the top. These seven cover most you'll encounter.

1) Open Crown (Round Crown)

A crown with no crease: a plain dome with straight sides. It’s the shape a crown has before anyone shapes it, so you can leave it as is or shape it later.

2) Center Dent Crown

A single crease running front to back, usually with a pinch at each front corner. A familiar crown on fedoras and homburgs.

3) Teardrop Crown (C-Crown)

Rounded at the back and narrowing toward the front, so the top looks like a teardrop from above, or a letter C from the side.

4) Diamond Crown

A four-cornered dent, with one point at the front and three at the back. It takes more hand shaping to even out the sides.

5) Telescope Crown

A flat top with a round dent around it, like the end of a telescope. It’s the crown of the pork pie and the gambler.

6) Cattleman Crown

A long, narrow center dent with a pinch on each side. It's the crown you'll see on most western hats today. Most cowboy hats now feature a cattleman crown, though open, teardrop, diamond, and telescope crowns still turn up.

7) Pinch Front Crown

Two pinches at the front corners, with little or no dent down the center.

A quick way to tell all of them apart is to look down at the hat from above. A teardrop narrows to a point, a diamond has four corners, a telescope is round with a flat top, and a center dent is a single line.

A fedora and a cowboy hat share the same parts. The crease and the brim set are what differ. If you already know your cattleman from your teardrop, welcome. If you don't, that's fine too, because hats are for everyone. For how crown and brim shapes pair into styles, the Brim and Crown Style Guide takes it from here.

What Are Crown Height, Taper, Tip, and Bash?

These four details are why two hats with the same crown type can look completely different on the same head.

Crown height: how tall the crown stands from the brim. It changes proportion and how the hat sits.
Taper: how the crown narrows from its base to its top. A stronger taper gives a narrower tip.
Tip: the top of the crown.
Dent and bash: the dent, also called the bash, is the indentation shaped into the crown's top. A “bashed” hat is hand-shaped to its owner's taste. Sometimes we also call the Dent “the Puddle.” When we put adornments in the dent, we call it “playing in the puddle.”

How Does a Crown Get Its Shape?

Most felt hats start the same way, and the crown's shape comes from three things:

Hat body (capeline): a cone of felt, shaped roughly before it reaches the blocking stage. Most felt hats begin here. We make our own blends in our partnering factory in Bolivia.
Hat block: the form a hat takes its shape from. We work with both a large blocking press and smaller wooden blocks worked by hand.
Blocking: the felt is pressed over the block with heat, steam, and pressure. Felt remembers the shape it's given, so a blocked crown tends to hold its line well through years of wear. It's also why our felt hats aren't made to be crushed (see Crushable Hats).

Once the crown is set, the handwork begins. We shape and cut the brim, insert the sweatband and liner, and add the trim.

When a crown loses its shape, it goes back on a block. That's reblocking, covered in Hat Restoration & Reblocking. For where felt itself comes from, see the History of Felt Hats.

What Is the Brim of a Hat?

The brim is the edge that sticks out from the base of the crown. It's the answer to "what is the protruding part of a hat called?" A hat doesn't cover your face. It frames it, and the brim is the frame.

At our bench, a brim is shaped one of two ways, and then it's finished:

Flange: a wide flat ledge built into some blocks that shapes the brim as the hat is blocked.
Ironed brim: on other hats, the brim is steamed and ironed flat by hand.
Cut to width: the brim is trimmed to width last, once we know whose head the hat is for. That's why width is a made-to-order choice. See the Brim Width guide.
Raw edge: the cut edge left unfinished, for a casual, natural look.
Bound edge (edge binding): a ribbon that wraps around the brim's outer edge. It's decorative and adds tension to the brim, making it "snap." It's optional: on a custom order, you can skip the binding or choose a different edge color.
Pencil curl: a very narrow roll along the brim edge, about as thick as a pencil.
Brim wire: a thin wire around the brim's edge. It adds structure to soft felt and holds the brim's outline, which is why you'll see it on many crushable hats. We use them in some of our straw hats. The trade-off is less room to shape the brim by hand.

What Is Inside a Hat?

Sweatband: the band fitted inside the hat that wraps around your head. We cut ours from llama leather and fit it in the workshop. It sets the fit, and it eases to your head with wear.
Liner: fitted after the sweatband to finish the inside of the crown. You can replace a worn or stained liner.
Sizing tape: a thin strip tucked in the sweatband to snug up a hat that runs loose, up to about half a size. If you're between sizes when you order, size up and add a note, and we'll include felt tape strips with the hat.

What Is the Difference Between a Hat Band and a Sweatband?

They're the two terms people mix up most.

Sweatband: inside the hat, against your head. It’s about fit.
Hat band: outside, a ribbon around the base of the crown. It’s about looks.

Ribbons, bands, bows, and feathers are all trim. We like to add rather than take away. Our hats are always a work in progress, and trim keeps changing over the years.

What Are the Felt and Straw Terms?

Fur felt: felt made from the fine undercoat of animal fur. Ours is reclaimed coypu (nutria). See Fur Felt vs. Wool Felt.
Wool felt: felt made from sheep’s wool, dense and firm. Less expensive.
Toquilla straw: straw hand-woven in Ecuador into a tight, flat weave.
Crocheted straw: straw worked in loops rather than woven flat. This is how straw buckets are made.

Conclusion

Knowing the words helps you tell us what you want. Crown, brim, sweatband, and hat band are the four to start with. Teardrop, cattleman, and pencil curl come after.

On a custom order, the brim width, band, ribbon, and trim are yours to choose, and crown options depend on the hat, so ask when you book. Bring the words you like, or come try a few on. You're welcome at the Berkeley workshop by appointment, and we love having people come by. Start a custom hatting →

If you'd rather start with a hat that's ready, browse the felt hat collection →

Happy Hatting.

Frequently Asked Questions

Q. What are the main parts of a hat?

A. A brimmed hat has a crown (the top), a brim (the edge that sticks out), a sweatband (inside, against your head), and a hat band (the ribbon outside, around the crown). Most also have a liner inside.

Q. What is the top of a hat called?

A. The top of a hat is called the crown. The very top of the crown is the tip. The crown is the part above the brim that sits on your head.

Q. What are the different types of hat crowns?

A. The main crown types are open (round), center dent, teardrop, diamond, telescope, cattleman, and pinch front. They're named for the dent or crease pressed into the top.

Q. What is the difference between a hat band and a sweatband?

A. A sweatband sits inside the hat against your head and sets the fit. A hat band is a ribbon on the outside, around the base of the crown, and is for looks.

Q. What is a capeline in hat making?

A. A capeline, also called a hat body, is the cone of felt most felt hats start as. It’s then blocked into a crown and brim.

Q. What is edge binding on a hat?

A. Edge binding is a ribbon that goes around the outside edge of the brim. It's decorative and adds a little tension to the brim to make it "snap." It's optional, and you can ask for it in a different color or skip it.