At Lock & Co., the perfect fit begins with precision. Whether you're selecting a traditional felt top hat or an antique silk piece, accurate sizing is essential for comfort, balance, and elegance.
Here's how to measure your head correctly, and why it matters.
We recommend using a flexible dressmaker’s tape to measure your head.
Not sure how it should feel? Read our guide: How Should a Top Hat Fit →
Explore a few of our Top Hats:
With several hats in each size, Lock & Co. will help you find the best top hat for you. Buy a luxury top hat that blends timeless elegance with expert craftsmanship – perfect for formal occasions and distinguished style.
Take the larger measurement if there's a discrepency.
The hat should feel secure but never restrictive.
This is when your head is likely to be at its largest due to natural swelling.
If you’re between sizes, our team can advise on discreet padding options or arrange for a bespoke adjustment using a conformateur for a precision fit.
Visiting our shop offers a more tailored experience. During a fitting:
We use a conformateur, a traditional French head-shaping device, to map the precise shape of your head.
This allows us to reshape or reblock top hats, especially vintage silk models, to your unique measurements.
You'll also receive advice on proportion, balance, and which crown height and brim width suit your face and stature.
When sized and shaped correctly, a top hat should feel secure but light, balanced, and unobtrusive.
Top hats should never:
Our clients often remark how effortlessly wearable a properly fitted top hat can be - especially those custom-shaped in our shop.
How to Care for and Clean a Top Hat?
How to Wear and Style a Top Hat?
How to Find the Perfect Top Hat for Royal Ascot, Weddings & Formal Events?
Have a scroll and discover some of our other articles, from press coverage to style guides and informational pieces.
As part of our 350th anniversary collection, we are proud to celebrate two of our most loved and iconic cap styles: The Gill Flat Cap and The Whitebridge Bakerboy Cap.
Join us on March 27th for wear a hat day and help make a difference. It's simple, fun and helps give hope to families affected by this devastating disease.
2026 will see Lock & Co. celebrating throughout the year, with very special events to attend, exclusive limited-edition men’s and women’s hats and caps launched each month - and even some extra-secret surprises!
Thank you, most kindly, for your custom, and we hope to see you in the shop or on our website soon. You are always most welcome.
Celebrate the season with timeless Christmas gifts from Lock & Co. Hatters. Explore our heritage inspired collection of hats, scarves, and accessories, crafted with care and designed to last.
Having joined the team only a few weeks ago, our milliner Isabel has already brought her remarkable embroidery expertise to life with a very special creation for Remembrance Day 2025.
To keep your Panama hat looking as stylish as the day you purchased it. We provide suggestions on how to take care of your Panama hat.
The right fit is essential for both comfort and style. A well-fitting flat cap should feel secure without being tight, sit correctly on your head, and complement your face shape.
Discover what makes a flat cap unique, explore its types, and learn about popular materials in this complete guide from Lock & Co. Hatters.
