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

Tremelo Black Bakerboy Cap

Keep things on the smart side of casual with our best-selling Tremelo eight-piece cap.

The Tremelo is the signature Lock & Co. bakerboy style cap. Crafted from 100% wool, this traditional bakerboy style works perfectly dressed up or down, rain or shine and is sure to stand the test of time.

Tremelo Black Bakerboy Cap


  • Peak Length: 6 cm
  • Peak Width: 19 cm

Dry a tweed cap or hat by shaking off the water and leave at room temperature.


Material: 100% wool. Fully lined and finished with our illustrious white Lock & Co. Hatters logo on the inside.

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.
100% Wool
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.
Standard 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.