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Finding the right hat isn’t just about style — it’s about fit. A hat that’s too tight can feel uncomfortable, while one that’s too loose might slip or look awkward. Our hat sizing guide shows you exactly how to measure your head and choose the perfect size, whether you’re buying a classic fedora, a trilby, or a casual everyday hat.
By following these simple steps, you’ll ensure your hat sits comfortably, looks great, and lasts longer. We’ve also included a hat size chart for the UK, tips for adjusting your fit, and common mistakes to avoid — everything you need to confidently pick your next hat.
Wearing a hat that fits properly ensures both comfort and style. A hat that’s too tight can cause discomfort, while one that’s too loose may slip or blow away in the wind. Getting the right size means you’ll look great whilst also being able to wear your hat all day long comfortably. If your hat doesn't stay on your head as it should, you just won't end up getting the wear out of it. A well-fitted hat doesn’t just feel better — it elevates your outfit, protects you from the elements, and makes every style choice easier. Whether you’re shopping online or in-store, knowing your exact measurements is the first step to a perfect hat.
Once you know your size, explore our Hicks & Brown collection of premium hats for men and women. From straw hats for summer to classic wool fedoras, every hat is designed with style, comfort, and longevity in mind.
Gather your materials
All you need is a flexible measuring tape (such as a dressmaker’s tape) or a piece of string and a ruler.
Measure your head
Position the measuring tape around your head where your hat will sit. This is typically about 1cm above your ears and across the middle of your forehead. Ensure the tape is level and sits snugly, but not too tight. You want a comfortable fit. If you’re using a string, mark the point where it meets and measure it against a ruler.
Find your size
Once you have your head circumference in centimetres or inches, compare it to the Hicks & Brown sizing guide:
Extra Small (53-54cm) Small (55-56cm) Medium (57-58cm) Large (59-60cm) Extra Large (61-62cm)
Tips for sizing in between sizes
If you find yourself between sizes, we recommend sizing up for a more comfortable fit. You can order a pack of our hat resizers which bring the fit in tighter.
A hat should feel secure but comfortable. Not too tight that it leaves an imprint on your forehead but not too loose that it flies off in a gust of wind.
Yes. While UK sizing is fairly consistent, different brands and styles may fit slightly differently. Always check individual size guides. Click here to view the Hicks & Brown specific size chat.
Some materials, such as wool felt, may relax slightly with wear, but hats should never rely on stretching to achieve the right fit.
Knowing your hat size removes the guesswork from buying a hat. With the right measurements and a little guidance, you can choose a hat that fits beautifully, feels comfortable, and complements your style perfectly.
Once you know your size, explore the Hicks & Brown collection to find a hat designed to be worn — and loved — for years to come.
Pack of two hat resizers/spacers.
If you find you are in between hat sizes we recommend putting a hat resizer in the inside of the headband, at the back of the hat, to provide a snugger fit.
They are also particularly useful for use on a windy day to keep your hat more secure on your head.
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