How to choose a baseball cap size?

Aug 23, 2025

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Choosing a hat isn't just about the style; the right fit is truly crucial. Many people buy baseball caps that either fit too tight or too loose and easily fall off. So, how do you choose a hat size? Today's article will explain the simplest method!

 

1. What are the different hat sizes?

Baseball caps are commonly sized in two main types:

Adjustable:

These have Velcro, plastic, or metal clasps on the back, allowing for flexible adjustment. They fit most people, so there's no need to worry about sizing.

Fitted:

These have no clasps and require an accurate head circumference measurement. They offer a more snug and stylish fit, but it's crucial to choose the right size.

Quick-drying Baseball Cap

 

2. How do you measure your head circumference?

You only need a tape measure and follow these steps:

Wrap the tape measure around your forehead and the back of your head.

Measure just above your eyebrows and above your ears.

The measured length (in centimeters or inches) is your head circumference.

 

3.Compare your head circumference to a hat size chart (for reference)

Head Circumference (cm)

International Size

Common Label

54–55 cm

S

Small

56–57 cm

M

Medium

58–59 cm

L

Large

60–61 cm

XL

X-Large

Different brands may have slight variations, so we recommend taking actual measurements.

 

4. What should I pay attention to when buying a baseball cap?

If it's a gift, it's recommended to choose an adjustable model for added security.

If you're customizing a cap (for company team-building or brand customization), confirm the target audience's head circumference range in advance.

Children's cap sizes generally range from 48–54cm, while adults' sizes are generally 56–60cm.

 

What can we do for you?

WANJIA is a Chinese hat manufacturer with 15 years of experience. We offer custom baseball caps, OEM/ODM services, and can produce caps in various sizes to meet customer needs.

Free sizing recommendations are available.

We offer a variety of adjustment options (such as Velcro, buckle straps, and elastic bands).

We offer fast sample development, making us suitable for wholesale purchases.

 

Not sure what size to choose? Feel free to contact us for advice or samples!

Contact Details:

Phone Number:+8617318147386

WhatsApp:+8617318147386

Email:info@customizationcaps.com

 

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