November 6, 2025
| Sizing
The right hat does more than top off your look. It ensures you feel comfortable, confident, and ready for anything. But here’s the catch: finding the correct hat size can be tricky if you don’t know how sizing works. That’s why Yupoong, Inc. (“Yupoong”) created this comprehensive hat size chart guide to help you measure your head, compare sizes, and select the perfect Flexfit® cap.
Whether you’re shopping for fitted hats, adjustable snapbacks, or stretch-fit styles, the Yupoong® hat size guide will show you exactly how to find your fit.
Why Hat Size Matters
Choosing the right hat size isn’t just about comfort, it also affects style and durability.
- Comfort: A hat that’s too tight can leave pressure marks, while one that’s too loose can slip off easily.
- Style: The right fit keeps your crown in place and your visor aligned, ensuring your cap looks sharp from every angle.
- Longevity: A properly sized hat adapts to your head over time, breaking in naturally without losing shape.
Getting your size right means your baseball cap not only looks good but feels like it was made for you.
How to Measure Your Head for a Hat
Before using the hat size chart, you’ll need to measure your head correctly. Here’s how:
- Take a flexible measuring tape (or use a string + ruler if you don’t have measuring tape).
- Place the tape about 1 inch (2.5 cm) above your ears, around the widest part of your head.
- Wrap it around until it overlaps, keeping it level across the forehead.
- Note the circumference in centimetres or inches.
💡 Pro tip:
Measure twice to ensure accuracy.
Now, match your measurement with the chart below.
Yupoong® Hat Size Chart
| Head Circumference (cm) | Head Circumference (inches) | Baseball Caps for Small Heads | Flexfit® Size Options |
|---|---|---|---|
| 43 – 46 cm | 16 ⅞ – 18 ⅛ in | 5 ⅜ – 5 ¾ | Infant |
| 45 – 47 cm | 17 ¾ – 18 ½ in | 5 ⅝ – 5 ⅞ | Toddler |
| 50 – 52 cm | 19 ⅝ – 20 ½ in | 6 ¼ – 6 ½ | Kid |
| 52 – 54 cm | 20 ⅜ – 21 ¼ in | 6 ½ – 6 ¾ | Youth |
| 53 – 56 cm | 20 3/4 – 22 in | 6 ⅝ – 7 | XS/S |
| 54 – 57 cm | 21 ¼ – 22 ⅜ in | 6 ¾ – 7 ⅛ | XS/M |
| 55 – 58 cm | 21 ⅝ – 22 ¾ in | 6 ⅞ – 7 ¼ | S/M |
| 57 – 60 cm | 22 ⅜ – 23 ½ in | 7 ⅛ – 7 ½ | M/XL |
| 58 – 61 cm | 22 ¾ – 23 ⅞ in | 7 ¼ – 7 ⅝ | L/XXL |
| 56 – 59 cm | 22 – 23 ⅛ in | 7 – 7 ⅜ | ONE Size |
This hat size chart makes it easy to see how your head measurement translates into a fitted hat size and which cap size is right for you.
Baseball Caps for Big Head Sizes vs. Small Head Sizes
Finding the right hat size can feel especially tricky if your head is larger or smaller than average. Here’s what to look for:
Baseball Caps for Big Head Sizes
- Choose Flexfit® caps available in L/XL and XXL for comfort.
- The Flexfit® Wooly Combed Cap and Flexfit® Melange Cap come in extended sizes without sacrificing style.
- One size fits all hats like the YP Classics® Retro Trucker allow adjustable comfort.
Baseball Caps for Small Head Sizes
- Small and XS sizes ensure a snug but stylish fit.
- Consider youth sizes if adult caps feel too loose.
- Popular options include the YP Classics® Premium Snapback and YP Classics® Adjustable Dad Cap.
Whether you need baseball caps for big head sizes or baseball caps for small head sizes, Yupoong offers designs that combine comfort, durability, and timeless style.
Fitted Hats vs. Adjustable Hats
When it comes to choosing your cap, sizing plays a big role in whether you go for fitted or adjustable.
- Fitted Hats: Available in precise sizes, offering a clean, custom fit. Great if you know your exact head size.
- Adjustable Hats: Use snaps, straps, or Velcro® to fit a wider range of sizes. Perfect for gifting or when you want flexibility.
- Flexfit® Stretch-Fit: Combines the best of both worlds—stretch technology molds to your head while offering sizing flexibility (S/M, L/XL, XXL).
Why Choose Flexfit® Hats?
As a global leader in headwear, Yupoong has redefined cap technology for comfort and performance. With innovations like Flexfit® Tech, Eco-friendly fabrics, and iconic designs, their hats are trusted by athletes, brands, and fashion lovers worldwide.
Whether you’re searching for fitted hats, adjustable snapbacks, or wholesale blank caps, at FF Headwear, an Authorized Distributor of Yupoong® / Flexfit® caps, after-market customization services are available to add your own branding on high-quality blank baseball caps manufactured by Yupoong.
Final Thoughts
The right hat size is about more than numbers. It’s about comfort, confidence, and style that lasts. By using the Yupoong® hat size chart, measuring your head correctly, and understanding the difference between fitted, adjustable, and Flexfit® stretch-fit caps, you’ll always find the perfect fit.
Explore our full range of Flexfit® hats and discover the cap that fits you best.
📞 Call: +44 (0) 151 707 1148 or 📧 Email: [email protected] to learn more about our wholesale program.
Common Questions About Hat Sizing
Q: How tight should a baseball cap be?
A baseball cap should sit snugly above your ears with the visor around mid-forehead. It should feel secure but not leave red marks.
Q: Can I wear a one size fits all (OSFA) hat if I have a big head?
Yes. But look for caps with snapback or strap closures for maximum adjustment.
Q: How do I read a hat sizing chart?
A: Hat sizes are in inches or centimeters. Use the hat size chart to find your fit.
Q: What if my measurement falls between two sizes?
A: Size up for comfort. Snapback and adjustable hats can be fine-tuned for a perfect fit.
Q: What is the average head size?
- Men: Average is about 59 cm (23 ⅛ inches) → Large in most charts.
- Women: Average is about 57 cm (22 ⅜ inches) → Medium in most charts.
- Children: Varies widely, but around 50–52 cm (19 ⅝ –20 ½ inches).
Q: What is OSFA size?
OSFA stands for “One Size Fits All.” It means the hat comes in a single adjustable size that can fit a wide range of head circumferences, usually 56–59 cm (22 – 23 ⅛ inches).
Q: What does OSFA mean in hats?
It’s short for One Size Fits All. These hats usually have adjustable closures like snapbacks, Velcro®, or straps, making them versatile and unisex.
Q: What is considered a big head?
Generally, a head size above 61 cm (23 ⅞ inches) is considered large or extra-large. For fitted caps, this would be size 7 ⅝ and above. Flexfit® hats are available with L/XL and XXL options to accommodate larger heads.
Q: What size hat is a small medium?
A Small/Medium (S/M) cap usually fits head circumferences of 55–58 cm (21 ⅝ – 22 ¾ inches).
In fitted hat sizes, this translates to about 6 ⅞ – 7 ¼.
Q: What is the hat size chart for women?
Most women’s hat sizes range from 54 cm to 59 cm (21 ¼ to 23 ⅛ inches). The average women’s hat size is around 57 cm (medium). Women can also wear men’s hats, especially adjustable snapbacks or stretch-fit caps, since many are designed as unisex.
*Flexfit® and Yupoong® are registered trademarks of Yupoong, Inc., used under authorization. FF Headwear is an Authorized Distributor.
