A hat has several parts, and each one has its own name and purpose.
The main parts are the crown, which sits on top of your head; the brim, which extends outward to shield your face from sunlight; and the hat band, a strip that wraps around the bottom of the crown.
Together, these parts create the hat’s shape and style.
Let’s take a closer look at each part so you’ll know exactly what makes a hat a hat.
The Parts of a Hat

One of our friends went to buy a hat but didn’t know the names of its parts. She found it hard to explain exactly what style she wanted, since there are so many kinds of hats. That’s when she realized how helpful it is to know the basic parts of a hat.
Knowing these simple hat terms saves time and makes it easier to find the perfect hat.
Crown
The crown is the top section of the hat that sits on your head. It can be round, flat, tall, short, stiff, or soft, depending on the style. It’s basically the ‘body‘ of the hat. It gives the hat its shape and height.
Brim
The brim is the wide edge around a hat that sticks out from the crown and helps block the sun. It helps shield your face, eyes, and neck from sunlight or rain.
Some brims are wide, like on a sun hat. Others are narrow or even curled up at the sides, like on a cowboy hat.
Hat Band
The hat band is a thin strip made from leather, fabric, ribbon, or another material. It wraps around the bottom of the crown, right above the brim.
It improves the hat’s appearance, helps it sit comfortably, and supports its shape. Swapping the band can quickly change the hat’s style.
Sweatband
If you look inside the hat, you’ll see a soft strip around the edge. That’s the sweatband. It makes the hat more comfortable and soaks up any sweat, so it doesn’t get too damp.
Underbrim
The underbrim is the bottom side of the brim—the part you see when you’re wearing the hat. It’s often a different color or material, and sometimes it’s made darker to help block sunlight and reduce glare, which makes it easier on your eyes.
Liner
The liner is a layer of soft fabric inside the hat that sits beneath the crown, adding comfort and a smooth finish against your head. It also helps keep the inside clean, and liners are usually made from satin, silk, or other soft materials.
Hat Decoration
Hat decorations are small details that improve the hat’s style, like feathers, pins, badges, ribbons, or little designs. They give the hat a distinctive look and are often used for special occasions.
Pinch, Dent, and Crease
Some hats have dents or creases in the crown to give them shape and style. The pinch is the small crease at the front, often where you hold the hat when putting it on or taking it off.
The dent is an inward dip on the top or sides, and the crease is the line that runs along the top of the crown. You’ll often see these features in hats like fedoras or trilbies. They give the hat shape and style.
Tip
The tip is the highest point on the crown of the hat. It may be small, but it’s an important part that helps shape the hat. Depending on the style, it can be round, flat, or pointed. Though simple, the tip helps complete the hat’s design.
For a quick visual recap, watch this short video explaining the essential parts of a hat.
Now that you know the key elements of a hat, let’s look at the different crown shapes you might come across.
Types of Crown Shapes

The crown is one of the most important hat components because it shapes the hat and helps you find a style that suits your face.
Round Crown
The round crown is a basic, traditional crown shape. It has a soft, rounded top with no dents or folds and sits comfortably on your head. It’s often used in casual or vintage-style hats like bowler hats, cloche hats, or baseball caps.
Flat Crown
As the name suggests, this crown has a completely flat top instead of a rounded one. This style gives the hat a sharp and structured look. Flat crowns are usually found in formal or fashion-forward hats like boater hats and some types of fedoras.
Pinched Crown
A pinched crown has small folds or indents on the front sides of the crown, usually where you’d naturally grab the hat to take it off. These pinches give the hat a more defined shape, and you’ll often see this in fedoras, trilbies, and other structured hats.
Teardrop Crown
This crown is narrow in the front and wider at the back, just like a teardrop when you look at it from above. It’s often used in fedoras and other classic hats because it fits well on most heads and gives the hat a clean, balanced look.
Center Dent Crown
This crown has one straight crease running from the front to the back. It’s a popular choice in classic hats like fedoras and trilbies, giving them a timeless style that works for both casual and formal settings.
Cattleman Crown
The cattleman crown is a traditional design with three dents—one in the middle and one on each side. It’s taller than most crowns and is a well-known feature of cowboy hats.
Gus Crown
The Gus crown is a type of cattleman crown with a steeper forward slope, giving it a bolder look often found in western-style hats.
Open Crown
An open crown is completely smooth, without any creases or shaping. It’s just a smooth, round crown, and many open-crown hats are shaped later by hand or steamed into a custom style.
Telescope Crown
This crown has a flat top with a circular dip in the center, like a telescope lens. The edge around the top is slightly raised. This style is common in pork pie hats and features a short, neat profile.
Diamond Crown
Shaped like a diamond when viewed above, this crown has four pointed corners. It gives the hat a modern, edgy look and is popular for fashion-focused styles.
Optimo Crown
The Optimo crown features a high crease that runs along the top, from front to back. It divides the crown into two halves and gives a clean, crisp look. It’s traditional in Panama hats.
Bubble Crown
The bubble crown has a full and puffy top, as if it has a bit of air in it. It’s not stiff or sharp-looking. You’ll usually see this kind of crown on soft, casual hats where comfort matters more than structure.
Alright, now that you know about different crown shapes, let’s talk about the brim. It may look simple, but if you pick the wrong one, the whole hat can end up looking off on you.
Types of Hat Brims

The brim is the part of the hat that surrounds the crown and extends outward. It protects your face and neck from the sun, rain, or wind.
A brim can be wide, narrow, flat, or curved, and each one changes how the hat looks. Here are some of the most common kinds of brims.
Flat Brim
A flat brim is completely straight, without any curves, which gives the hat a modern and sharp look.
This style of brim is popular in fashion hats and streetwear, like snapbacks or certain fedora styles. If you want to look cool and a little edgy, a flat-brim hat is a great pick.
Curved Brim
Unlike the flat brim, a curved brim gently bends down, usually at the front. This shape helps block sunlight from your eyes more effectively, which is why it’s common on casual hats used for outdoor activities.
Wide Brim
Wide brims stick out more and give better protection from the sun and rain. You’ll see them on cowboy hats and sun hats. They block the sun and give the hat a strong, stylish look.
Narrow Brim
Narrow brims are shorter and sit closer to the crown. Although they don’t cover as much area, they give the hat a neat and stylish appearance, especially on hats like trilbies or fedoras.
Upturned or Downturned Brim
In some hats, the brim curves up or down. A brim that bends downward can create a vintage or elegant look, as seen in cloche hats. One that turns upward often feels more fun or dressy, and is common in retro or formal designs.
Snap Brim
A snap brim is usually flat, but you can bend the front part up or down. How you wear it changes the hat’s look.
Pencil Roll Brim
This brim has a thin edge rolled tightly around the brim, similar to a pencil’s shape. It’s a small touch that gives the hat a neat and stylish look.
Types of Hat Materials
The material of a hat really matters. If it’s not comfortable or doesn’t suit the weather, you probably won’t wear it much. Plus, good material means the hat will last longer. Here are some common materials used in hats:
Cotton
Cotton is soft, breathable, and super comfortable, which makes it perfect for everyday wear, especially in warm weather.
You’ll often see it in casual styles like baseball caps, bucket hats, and floppy sun hats. It’s easy to clean and feels more comfortable against the skin, which is why many people prefer it for daily use.
Wool Felt
Wool felt is made by pressing wool fibers tightly together to create a warm, sturdy fabric. It’s perfect for cooler weather and helps hats hold their shape well. You’ll often find it in hats like fedoras, cloches, and pork pies.
Straw
Straw is lightweight and breathable, which makes it great for hot, sunny days—whether it’s a wide-brimmed beach hat, a Panama hat, or other summer styles. Some are made from natural straw, while others use paper or synthetic straw that looks similar.
Leather
Leather gives a tough, stylish look and is very durable. It’s used in cowboy hats, biker caps, and fashion pieces that need to stand out. While not the most breathable, leather hats can last for years if you take care of them.
Polyester or Nylon
These man-made fabrics are durable, light in weight, and usually resist water. They’re used in many sporty or outdoor hats because they dry quickly and handle sweat well. These fabrics are ideal for hiking, running, or just being out in the rain.
Toyo
Toyo is a shiny, woven paper material that looks like straw but is usually more affordable. It’s coated to make it stronger and is commonly used in stylish summer hats. Just keep in mind it’s not meant for wet weather, and it’s not as long-lasting as other materials.
Fur Felt
Fur felt is made from animal fur, like rabbit or beaver, and it’s considered a premium material in hat-making. It’s soft, durable, and has a luxurious finish. Hats made from fur felt tend to be pricier, but they last a long time and hold their shape beautifully.
Synthetics (Blends or Modern Materials)
Synthetic materials like polyester, nylon, and rayon are man-made. They’re popular in hats because they’re tough, don’t get damaged easily, and are simple to clean. But since they don’t breathe as well as natural materials, they might feel a bit warm on hot days.
These materials are often used in fashion hats or costume pieces where appearance matters more than breathability, so they’re better for short-term wear on special occasions.
What’s the Difference Between a Brim and a Bill?

Many people confuse a brim with a bill because both extend outward to provide shade, but they are different.
A brim goes all the way around the crown of the hat. It can be wide or narrow, flat or curved, and is common on hats like fedoras, sun hats, and cowboy hats.
A bill, also called a visor, sticks out only at the front of the hat. You’ll see bills on baseball caps and snapbacks. They are usually curved to protect your eyes from sunlight, rather than covering your whole head.
If the edge goes all the way around, it’s a brim. If it’s only at the front, it’s a bill.
Final Thoughts
Most people pick a hat just because it looks good. But later, they realize it doesn’t fit right or it’s not as comfortable as they hoped.
When you understand the basic parts of a hat, like the crown, brim, and material, it’s easier to find one that actually works for you. Something that fits well, feels right, and matches your style.
It might seem like a small thing, but this basic knowledge can save you from buying the wrong hat and help you find one you’ll enjoy wearing.
Have a favorite hat or a funny hat-shopping story? Share it with us in the comments.