Lock & Co. are proud to launch a new limited edition James Bond hat. View

Linen Muirfield Bakerboy Cap

This relaxed style will keep you cool in the summer heat.

Made from 100% linen, our summer version of the Muirfield is designed to be worn oversized. This relaxed style is perfect to accompany your favourite summer outfits.

Linen Muirfield Bakerboy Cap


  • Peak Length: 7 cm
  • Diameter: 27 cm

Steam from a household kettle and a soft bristle hat brush will help remove dust and dirt. Brush the hat using short strokes.

This hat is not designed to be worn in the rain. Should you get this style wet, it should be dried at room temperature, never on top of a radiator.

Linen hats and caps should not be stored in direct sunlight.


Made from 100% linen, this cap is fully lined with cotton and is finished with an internal cotton sweatband so that it stays firmly in place.

Styling & Fitting

Bakerboy caps look best styled at an angle or worn level just above the eyebrows.

Our summer version of the Tweed Muirfield is designed to be worn oversized.

How to measure your hat size. Read More

Hat Size Chart

Men's Hat Styling

Every Lock & Co. hat purchased is carefully and expertly hand-prepared in our London shop by one of our Hatters, before being whisked out of our famous green front door.

To find your perfect hat size, we suggest booking a virtual appointment for a consultation with one of our hatters here.


At Lock & Co., we sell the finest hats and caps. To achieve this, we pay particular attention to specific hat characteristics - style, fit, durability, and materials. We share these characteristics with you for each hat to help you decide on the perfect choice.

Find Your Size and Style

Bakerboy Cap
At Lock & Co. we offer a wide selection of styles of hats. What defines a hat style is its form: overall shape, height/shape of the crown, width of the brim, and material type. These define a style e.g., Fedora, Trilby, Panama, Cloche, Tweed cap etc.
Lock & Co. hats are made of the finest quality material. These can range from exclusive Escorial wool, Scottish Tweed, and cashmere to Toquilla straw for our Panama hat.
Fuller Shape
Different styles of hats have different shapes to them, including classic, fuller, narrow, and standard fits, or with an oversized or a wide brim or sporting a particular shape - bell, birdcage, etc.
Lightweight Breathable
Every part of a hat has its purpose. Discover the features or aesthetic of each hat and how it will specifically enhance your hat-wearing experience.