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

Grosvenor Houndstooth Flat Cap

Smart and understated, this classic flat cap looks and feels effortlessly cool.

Our bestselling flat cap is perfect for the autumn and winter seasons. This chic but understated cap has been re-imagined in a smart black and dark green city check made from 100% wool by Italy's oldest cloth manufacturer.  Wear it in the city for a London vibe or in the countryside for winter walks.

Grosvenor Houndstooth Flat Cap


  • Peak Length : 5 cm
  • Peak Width : 16 cm

Steam from a household kettle and a hard bristle hat brush will help remove dust and dirt. Brush the hat using short strokes, following the natural direction of the fibre.

Wet hats should be dried using a clean, absorbent cloth or sponge.


Made from 100% wool by Vitale Barberis Canonico (VBC) , Vitale Barberis Canonico is the oldest cloth manufacturer in Italy. It dates back to 1663. They are renowned for producing some of the finest fabrics in the world. The hat is finished in Belgium.

Styling & Fitting

Flat caps are designed to be worn centrally on the head and not cocked to the side.  

This style comes with a complementary cap box. 

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

Flat 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.
Narrow 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.